The different types of tropical storms

A storm at sea can be spectacular – seen from a safe distance. As the wind passes over the water’s surface it creates waves. But if the force of the wind is strong, powerful waves are generated, gathering momentum until a barrier in their path causes then to break will full force.

Not all winds are of equal height. This is partly because the wind seldom blows at a constant speed. When the wind dies down, wave length is maintained but wave height decreases gradually. Where there is no barriers in their path, waves crests may carry over vast distances. When waves created in different places come together, they produce a confused sea state. Boats may be completely overwhelmed by a storm at sea – getting swamped, smashed, or both, by the huge quantity of water falling on them.

The full force of a wave is not realized until it reaches the shore. As it sweeps in towards land, contact with the sea-bed slows down the lower part, but the wind keeps the top moving on. The wave becomes steeper, begins to overhang, and finally crashes down. On steep shores, waves do not have time to slow down. Suddenly, their way is barred and they smash against the rocks with tremendous force – 100 tonnes per square metre is not unusual.

Spinning destruction

Winds exceeding Force 12 (over 117km/h) can devastate anything that lies in their path. They are known as hurricanes in the Atlantic, typhoons in the North Pacific and cyclones in the Indian Ocean and around Australia. These great storms start when scattered cloud clusters of tropical thunderstorms are gathered together into a whirling spiral by the Earth’s rotation. At the centre of the spiral is a column lo low pressure – the eye.

Because of the low pressure, air is sucked into the spiral with great force, resulting in violent winds. These set up huge waves at sea, which have devastating effects. Hurricanes may persist for up to ten days, and although the path they will follow can be predicted to some extent, unexpected twists and turns are common.

A water spout is another example of the sea being whipped up. This is rather like a liquid tornado. Warm air rising from the sea creates a central column of low pressure which draws up a swirling rising wall of water. When a low pressure system – depression – passes quickly across the sea, the water level suddenly drops, then rises. A great swell is created, knows as a storm surge, which can flood huge areas as it hits land.

Tsunamis

Just as terrifying as rough seas, are tsunamis, caused by earthquakes and volcanic eruptions in the ocean. Small earthquakes occur along the ocean ridges, where the Earth’s crust in thin and hot. The largest ones are along the lines of collision of the plates.

The quake lifts the ocean floor, which buckles and collapses, and the shock tremors suddenly move the whole mass of water above, right from the ocean floor to the surface. As the tremors radiant outwards, the tsunami sweeps across the ocean at a terrifying speed of up to 720 km/h. At first, tsunamis are very small and may not be noticed in the open sea. However, as they come to shallower water, they are slowed down by the drag of the sea-bed and the waves build into a vast wall of water with an awesome power for destruction. They hit the coastline with a tremendous force. Boats are thrown high up on the shore, land is filled with sea water and houses destroyed.

Source :Helium.com

Fish as Good as College Students in Numbers Test

Mosquitofish can "count" to a hundred but have trouble with ratios, study finds.
Are you as smart as a mosquitofish?

According to a new study, college students showed roughly the same numerical skills as the small fish when presented with a laboratory test.

Mosquitofish, freshwater fish with a taste for mosquito larvae, are highly social. When a mosquitofish finds itself alone, its top priority becomes finding others. A previous study showed that the fish can, in fact, "count"—differentiating between numerical quantities in a lab experiment.

The new study shows that the fish can not only tell the difference between small numbers such as 4 and 8, but they can also differentiate between quantities as large as 100 and 200.

"You just don't expect interesting results like this when dealing with animals like fish," said study leader Christian Agrillo of the University of Padova in Italy. "We thought this was really incredible."
But numerical skills break down for the fish when the ratios between two numbers change—an effect that was also seen among human volunteers.
Fish That Can "Count" to a Hundred
For the initial experiment, lone fish were trained in the lab to associate a door bearing a certain number of geometric shapes with the path to rejoining a larger group.

The fish were then placed in tanks where they had to chose between one of two identical doors bearing different numbers of symbols. For example, four shapes might be associated with door A and eight shapes with door B.

At the beginning of the test, the fish did not know where to go, and they chose randomly. Over time, however, the fish started to chose the correct door more often than by chance alone.

The new study repeated this experiment—but then the researchers started using bigger numbers of shapes on the doors.

"It was kind of funny, most of them appeared to be surprised when we switched from small numbers to hundreds. They swam inside the tank for a while, looking at the new stimuli as if they were trying to understand what was going on," Agrillo said.
 
"However, after a short while they started to solve the task as well."

Ratios Boggle Fish and Humans

As the researchers tinkered with the amounts on the doors, they found that when the sets of shapes were closer in number, the fish were less successful.

For example, when the ratio between the shapes on the two doors was 1:2 (8 versus 16) or 2:3 (8 versus 12), the fish chose the correct door more often than by chance. But when the ratio became 3:4 (9 versus 12), the fish showed no indication that they could detect a difference.

Keen to see how the numerical skills of fish compare to those of humans, the researchers asked a group of 25 undergraduate students to engage in a test that presented them with the same types of challenges.
The test forced the students to determine the difference bet

While humans were universally more accurate than fish, they showed the same degraded ability to judge number differences as ratios shifted from 2:3 to 3:4.

According to Agrillo and colleagues, the results add to evidence that humans, fish, and other vertebrates share the same abilities for processing numbers as a distant but common ancestor.

5 Famous Scientists Dismissed as Morons in Their Time

Every nutjob in the world with some out-there theory thinks he's Galileo, rejected for daring to think different. Virtually all of them are, in fact, simply insane.

Yet, there have been brilliant rebels who put their own world-changing ideas on the line, only to end up like Doc Brown in his alternate timeline: humiliated, ridiculed, ignored and/or straight driven to insanity.

Gregor Mendel

You probably know Mendel as the guy who pioneered the science of genetics, and for keeping eighth-graders busy while science teachers watch porn at their desks. Anybody with a high school diploma has filled out those dominant/recessive trait Punnett squares ...
... though astute readers are probably wondering why that technique is called a Punnett square if it predicts patterns Mendel discovered.

What you probably didn't know was that before making his revolutionary discovery, Gregor Mendel flunked his ass out of school and resigned himself to a quiet life as the abbot of a monastery. It had an extensive experimental garden and there Mendel patiently spent the next seven years of his life breeding and cross-breeding peas.

He carefully documented his work and developed what would eventually be known as Mendel's Laws of Inheritance. Then he wrote it up and got it published in an lesser-known journal, the Journal of the Brno Natural History Society in 1866.

His Genius Was Rewarded By ...
A quiet life of complete anonymity. Mendel's work was read by about zero people, even after he took it upon himself to contact the highest minds of his time by personally sending them copies of his theory. It turns out he would have been better off writing it on a paper bag filled with dog shit and leaving the whole flaming mess on porches.

Why did they ignore him? Because the greatest minds of his time couldn't understand him. It wasn't until 16 years after his death that three independent botanists rediscover Mendel's work and started the genetics ball rolling.

Ignaz Semmelweis

We've brought up poor old Semmelweis once before, but just in case you don't have a running loop of Cracked articles going through your head, here's the recap: Back in 1847, Semmelweis found himself in charge of two maternity clinics. The first clinic was a teaching school, with medical students learning birthing, autopsying and everything in between. The second clinic was intended for women who couldn't afford health care and was serviced by midwives, not actual doctors or students.

Yet it was the second clinic that women of all social statuses begged to get into. Why? Because if they went to the first clinic they'd have a 10 percent chance of dying of puerperal fever, a six percent greater rate of death than in the midwife-run hospital. Women literally had a better chance of surviving a birth on the street than in the first clinic. After an exhaustive study, Semmelweis figured out that medical students were smothered in disease cooties from cadavers, and that maybe, just maybe, they should wash their hands in between the autopsy room and the birthing rooms.

He insisted students perform a simple chlorine wash after handling dead guys and immediately got the death rate down to one to two percent. With numbers like that, you'd think the whole continent of Europe, much less the medical community, would have crowned him "king of live babies" or something.

His Genius Was Rewarded By ...
First dementia, then a beatdown at an insane asylum, then death, by virtually the same disease he had eradicated in his own hospital.

Semmelweis didn't just have the disregard of his contemporaries, he had their flat-out scorn. Maybe it was because he didn't get around to explaining himself on paper right away, so no one understood what hand-washing had to do with keeping people alive. Some doctors were actually insulted that he was accusing Viennese medical students being dirty enough to kill people.
Within 14 years of his groundbreaking discovery, Semmelweis just stopped giving a fuck. He got drunk all the time and called all his detractors "ignoramuses" and "murderers." He started chilling with prostitutes and lashing out at family. That last part proved to be a bad move, because in 1865 they had him committed to an insane asylum, where he was promptly beat up and stuck in a dark cellar.

He died two weeks later. It took another 20 years and Louis Pasteur's germ theory for the rest of the world to come around to the concept of washing your hands to keep from getting sick.

George Zweig

The year 1964 was a watershed year by any measure. The Beatles arrived, the Civil Rights Act was passed, Nicolas Cage was born and in two separate parts of the world, two separate scientists proposed the existence of quarks, the teeny-tiny subatomic particles that combine to form matter. If you've been paying attention, you know one of these guys is about to get screwed. (Hint: It's George Zweig.)

Zweig had three things going against him in 1964. One, he was a young graduate student, unpublished and unproven. Two, he was working at a particle research center in Geneva. You'd think that would be an advantage, but it turns out his institute had a stringent model for publication, and his paper on quarks, which he called "aces," didn't meet its standards (even though he had come up with a much cooler name for the particle). And three, an older scientist from his grad school proposed the exact same theory at the exact same time and because of his stature was able to publish that exact same theory with the exact same publication that rejected Zweig's.
At first, both men were called crazy for their insane notions of invisible particles. They had no model of behavior for the buggers and no methods of ever actually looking at them. But eventually the science world came around, and by 1969, Zweig's rival was awarded the Nobel Prize in Physics for his work. As for Zweig.

His Genius Was Rewarded By ...
Being blackballed by a major university and accusations of being a "charlatan."

It wasn't until the 1970s that anyone could actually prove the existence of quarks, and by that time, the Nobel Prize committee felt it had already given the little particles enough attention, so it was reluctant to revisit the subject. Nevertheless, in 1977, Zweig and his rival were both nominated, but neither won. Zweig ended up changing his field of study to neurobiology, presumably believing that if he made a seminal contribution to every area of science, he'd eventually get credit for something.

Albert Einstein

Trying to convince you that Albert Einstein was rejected in any way during his lifetime let alone a moron is a hard sell, considering that he was one of the most famous men on the planet at the time. But buried deep in a lifetime of utter brilliance, Einstein was saddled with one big mistake. One that it turned out wasn't a mistake at all.

To understand, you have to know a little bit about Einstein's General Theory of Relativity. Not a whole lot, just the fact that it didn't allow for a static universe. Einstein believed the universe had to be static, or else the forces of gravity would cause the whole universe to contract onto itself, which it apparently wasn't doing. So, to make up for this weird conundrum, he invented something called thecosmological constant, an unknown, unchanging force that allowed him to have his cake (General Theory of Relativity) and eat it, too (stand by a static-universe model).

But not too long after Einstein came up with the cosmological constant, Edwin Hubble burst his little unmoving universe bubble by finding evidence that the whole shebang was expanding. Einstein called the cosmological constant his "biggest blunder" and went to his grave thinking he was an idiot for having proposed it. And so did everyone else. For a while.


His Genius Was Rewarded By ...

Einstein didn't get heaped with scorn like some of the other geniuses on this list, so he got off with a little self-deprecation with a side of regret. And he also dropped the whole idea of the cosmological constant. But here's the thing -- it turns out he may have been right all along. Not about the universe being static, of course, but that this mysterious, unknown entity existed in the first place.
In the 1990s, scientists discovered that the universe was expanding faster than they had previously thought and that the rate of expansion was being fueled by a mysterious, unknown entity. There are several contenders up for consideration as the cause, but everyone's favorite? You guessed it: Einstein's cosmological constant. His math of the constant magically fit the bill. Also because you never go wrong when you bet on Einstein.


Ludwig Boltzmann 

Ludwig Boltzmann had the unfortunate luck of being born with a genius brain at the wrong time. Back in the 19th century, there was a huge debate over the nature of matter. Boltzmann not only had the audacity to presuppose the existence of atoms at a time when the atomic model was still controversial among scientists, but also built every one of his brilliant theories as if there was no debate at all. How brilliant? Hang on to your test tubes, because thing are about to get sciencey.

For one, he pioneered the study of statistical thermodynamics, which is a field of physics that provides a framework for predicting how a large number of particles will behave in a system. So, let's say you're camping and you start a fire. Boltzmann was the guy who tried to figure out what the crap was going on in those logs on a molecular level that allowed the fire to kindle, and he used fancy math formulas to figure it out. His work ultimately paved the way for the field of quantum mechanics, which eventually paved the way for the greatest time travel show ever.

His Genius Was Rewarded By ...

Death. He got death.
Back then, defending the existence of atoms was akin to defending creationist version of the origins of man today. Boltzmann wasn't just forced to defend something that would be accepted as fact within a few years, he was shamed for his stubborn refusal to yield and for his so-called materialist beliefs.
Nobody ever told scientists that nonmaterial science is already called philosophy. A long series of uneven debates left nearly every other supporter of atoms silent, leaving Boltzmann as their chief defender. Even colleagues who originally agreed with him began to question atoms' existence when his work seemingly undermined previously understood laws of physics.

The emotional burden of being the only right guy in the world, coupled with what was probably undiagnosed bipolar disorder, proved too much for Boltzmann to handle, and he hung himself in 1906, only three years before another scientist proved the undeniable existence of atoms. Nice job, science.

Diabetics could soon 'grow their own insulin'

Scientists may have found a way of curing diabetes - at least in men.

They have used tiny slivers of testicular tissue to make millions of healthy replacements for the faulty cells behind the condition.

In experiments on mice, grafts of the lab-grown pancreatic cells produced enough insulin to control blood sugar levels in diabetic mice.

Although the work is at an early stage, the American researchers believe it could lead to a cure for men and boys with type 1 diabetes in perhaps just five years.

However, British experts have urged caution, saying that any cure is still many years away.
Diabetes occurs when the pancreas does not make enough insulin, a hormone key to the conversion of sugar into energy, or the insulin that is made does not work properly.

The 250,000 Britons with type1, or childhood, diabetes do not make any insulin at all and so need to take regular injections to stop blood sugar levels from fluctuating wildly.
In the latest study, immature cells that would normally go on to form sperm were turned into healthy insulin-producing cells.

The researchers, from Georgetown University Medical Centre, in Washington DC, started with tiny samples of tissue from human testicles.

Using a cocktail of vitamins and growth factors, they transformed them first into stem, or ‘master, cells, and then into the beta islet cells that produce insulin in the pancreas.
The process took around five weeks, the American Society of Cell Biology’s annual conference heard.
Layers of pancreatic cells were then grafted onto diabetic mice, where they produced enough insulin to control blood sugar levels for a week.

While this might not seem long, the researchers say it should be possible to make the cells work for much longer - and for them to produce enough insulin to benefit human diabetics.
Researcher Dr Ian Gallicano believes the testicular cells, or spermatogonial stem cells, could succeed whether other potential diabetes cures have failed.

He said: ‘No stem cells, adult or embryonic, have been induced to secrete enough insulin yet to cure diabetes in humans, but we know that spermatogonial stem cells have the potential to do what we want them to do, and we know how to improve their yield.’

Using a man’s own cells as the source of the treatment would sidestep any chance of the tissue being rejected by the body.
They hope to test the technique on men for the first time within months. If large-scale trials show it to be safe and effective, the transplant technique could be in widespread us in as little as five years.
Adapting the technique to eggs instead of sperm could allow female diabetics to eventually benefit too, the researchers believe.
Although the work is focused on type 1 diabetes, the technique may also be applicable to some cases of type 2 diabetes, the more common form of the condition.

This type of diabetes tends to affect people over 40 and occurs when not enough insulin is produced, or the insulin that is made doesn't work properly.
Chris Mason, professor of regenerative medicine at University College London, welcomed the breakthrough but cautioned it may be many years before patients can benefit.

He said: ‘Yet again, a world-class team of scientists has suggested another novel cell-based therapy for diabetes.
‘The question is how to turn such great discoveries into safe effective cures for people with diabetes - a process that has a high failure rate and takes years. It is time for less hype and more pragmatism.’
The charity Diabetes UK was more blunt, describing the research as ‘a tiny, incremental advance’ in the search for a cure for diabetes.

Source:

Smoking cigarettes damages 323 different human genes

It's not exactly news that smoking cigarettes is bad for you, but this latest danger is a doozy: smoking damages your genome. The largest genetic study of smoking ever has identified over 300 genes that are negatively affected by cigarettes.

The study looked at white blood cells from over a thousand people in the hopes of isolating specific genes whose expression was altered by smoking cigarettes. It's just one of many studies being undertaken as part of the San Antonio Family Heart Study, which has spent years examining health issues in the Texas city's Mexican American community, but this particular test is probably the most ambitious.


Research leader Jac Charlesworth explains what they found and why it's significant:

'Previous studies of gene expression as influenced by smoking have been seriously limited in size with the largest of the in vivo studies including only 42 smokers and 43 non-smokers. We studied 1,240 individuals, including 297 current smokers. Never before has such a clear link between smoking and transcriptomics [effects on gene expression] been revealed, and the scale at which exposure to cigarette smoke appears to influence the expression levels of our genes is sobering.'



The genetic effects observed fit into a variety of categories that correlate well with the known physical effects of smoking, such as decreased immune response, cell death, increased risk of cancer, metabolism of foreign particles, and natural killer cell signaling. Taken as a whole, the study points out just how deep the damage of smoking goes.


As Charlesworth puts it: 'Our results indicate that not only individual genes but entire networks of gene interaction are influenced by cigarette smoking. It is likely that this observed effect of smoking on transcription has larger implications for human disease risk, especially in relation to the increased risk of a wide variety of cancers throughout the body as a result of cigarette smoke exposure'

Source:Amazing news blog 

Microneedles may make getting flu shots easier

One day your annual flu shot could come in the mail. At least that's the hope of researchers developing a new method of vaccine delivery that people could even use at home: a patch with microneedles.

Microneedles? That's right, tiny little needles so small you don't even feel them. Attached to a patch like a Band-Aid, the little needles barely penetrate the skin before they dissolve and release their vaccine.

Researchers led by Mark Prausnitz of Georgia Institute of Technology reported their research on microneedles in Sunday's edition of Nature Medicine.

The business side of the patch feels like fine sandpaper, he said. In tests of microneedles without vaccine, people rated the discomfort at one-tenth to one-twentieth that of getting a standard injection, he said. Nearly everyone said it was painless.

Some medications are already delivered by patches, such as nicotine patches for people trying to quit smoking. That's simply absorbed through the skin. But attempts to develop patches with the flu vaccine absorbed through the skin have not been successful so far.


In the Georgia Tech work, the vaccine is still injected.
But the needles are so small that they don't hurt and it doesn't take any special training to use this kind of patch.

So two problems are solved right away — fear of needles, and disposal of leftover hypodermic needles.
"The goal has been a means to administer the vaccine that is patient friendly," Mark R. Prausnitz of Georgia Tech said in a telephone interview.

That means "not only not hurting or looking scary, but that patients could self-administer," he said, and people would be more likely to get the flu vaccine.
By developing needles that dissolve, there are no leftover sharp needles, especially important for people who might give themselves the vaccine at home, he said.

The patch, which has been tested on mice, was developed in collaboration by researchers at Georgia Tech and Emory University, Prausnitz said. The researchers are now seeking funds to begin tests in people and, if all goes well, the patch could be in use in five years, he said.

Flu vaccination is recommended for nearly everyone, every year, and that's a big burden on the public health network, Prausnitz noted. Many people don't get the shot because it's inconvenient, but if they could get in the mail or at the pharmacy they might do so, he said.

The patch is placed on the skin and left for 5 minutes to 15 minutes, he said. It can remain longer without doing any damage, he said. In tests on mice, the miocroneedles delivered a correct dose of the flu vaccine.
The little needles are 650 microns (three-hundredths of an inch) in length and there are 100 on the patch used in the mouse study.

Asked if the term "microneedle" might still frighten some folks averse to shots, Prausnitz said he was confident that marketers would come up with a better term before any sales began.
The research was supported by the National Institutes of Health.

Source :arab news.com 

Breastfeeding boosts schoolboys' brains, not girls'

Breastfeeding improves later academic performance in boys but appears to have no such effect in girls.
Wendy Oddy at the Telethon Institute for Child Health Research in Subiaco, Western Australia, and colleagues, examined whether having been breastfed affected the test scores of over 1000 10-year-olds.
Studies have suggested that children who were breastfed have higher IQs than those who were not, but few separated out boys and girls. Mothers who breastfeed are on average wealthier and more educated, so Oddy's team accounted for these factors.

Boys who were mainly breastfed for at least six months scored 9 per cent higher in mathematics and writing tests, 7 per cent higher in spelling and 6 per cent higher in reading, compared with boys fed with formula milk or breastfed for shorter periods. There were no significant differences in results for girls.

"We know that breast milk contains the optimal nutrients for development of the brain and central nervous system," says Oddy, but the gender differences were surprising.

Hormone link

Oddy points out that other studies have suggested boys are more vulnerable to stress and adversity during critical periods of brain development. She speculates this could be because girls seem to be protected by higher levels of oestrogen during childhood. She says the improved academic performance of boys could be explained by oestrogen in breast milk having similar neuro-protective effects.

Some studies have suggested that fatty acids uniquely present in breast milk explain research showing that it can help babies become more intelligent. Whether or not these fatty acids help in boosting IQ may be linked to the presence of certain gene variants involved in their processing.

A large randomised trial conducted by Michael Kramer at McGill University in Montreal, Canada, concluded that prolonged breastfeeding was linked tohigher IQ and academic ratings by teachers in Belarussian children at age 6, but found no sex differences.

"These results add to the evidence that longer and exclusive breastfeeding is beneficial for cognitive development," says Kramer.

The World Health Organization recommends exclusive breastfeeding for at least six months, and states that failing to do so impairs intellectual and social development.

Source: newscientist.com

The teenager who sleeps for 10 days

 While most teenagers struggle to get out of bed in a morning, Louisa Ball might take 10 days to fully wake from her slumber, due to a very rare neurological disorder. So what's it like living with Kleine-Levin Syndrome?

Louisa has slept through holidays, friends' birthdays and half of her GCSEs.

In 2008, aged 14, she had been suffering from flu-like symptoms. She was at her school in Sussex when she started nodding off in class and behaving strangely.

"I didn't know what I was doing, what I was saying, everyone thought 'hey this isn't right,'" she recalls.
"I was hallucinating and after that I don't remember anything. All of a sudden it just went blank and I just slept for 10 days. I woke up and I was fine again."

Her parents Rick and Lottie watched their daughter becoming fidgety and with unusual facial expressions as she sank into sleep. The first time was a frightening experience for them, although Louisa herself says she wasn't scared by the episode, more puzzled.

"It was really weird, no one knew what was wrong, we just thought it wasn't going to happen again. And then four weeks later it happened again."

She was finally diagnosed with Kleine-Levin Syndrome (KLS). There is no known cause or cure but Louisa says it was good to know what it was and that it wasn't life threatening.

The average time it takes to diagnose the condition is four years, because there is no test and so it requires a process of elimination of other disorders.

The disease was named after Willi Kleine, a neurologist from Frankfurt, and Max Levin, a psychiatrist from New York, who identified patients with similar symptoms in 1925 and 1936.

Louisa is unusual as KLS usually affects teenage boys, who can also exhibit hypersexuality and inappropriate behaviour.
As well as excessive sleeping, symptoms include behaviour changes, irritability, feeling in a dream-like state and binge eating, symptoms that can be mistaken for normal teenage behaviour. There are no drugs that have conclusively shown to alleviate symptoms.

'No dreams'

People with the sleep disorder narcolepsy fall asleep immediately, but people with KLS might sleep more and more over a number of days before falling into sleep mode.

Louisa says she remembers very little when she wakes up from an episode: "It's just blank - no dreams. Now I'll remember a lot more that's gone on. Before I wouldn't remember anything at all. My dad thinks my brain is learning to cope with it more."

So how do you deal with a disorder that takes over your life so much?

It nearly ruined Louisa's career ambitions, because she slept through most of her GCSEs but her college allowed her to enrol and she is studying sport performance and excellence, with dreams of being a dancer.
At first, her school teachers didn't understand, she says. "They'd give work to my brother for me to do and when I went back to school they expected me to have done it but I'd have slept for 10 days."

Some people with KLS have complained they have lost their friends because they suddenly disappear for weeks on end but Louisa has a close knit group of girlfriends. Some even visit her when she's sleeping, just to check she's ok.

When she wakes up, it takes her a few days to fully come round, and her body is quite stiff so her dancing is affected for while.

"I've never really got upset about it but I sometimes do think 'why me', because I've always been a normal healthy person. But all of a sudden it happened and there's no reason why it happened and that sometimes frustrates me.

"But I've got used to it now and learnt to live with it. I'm a special kid."
The change in behaviour before and during a sleep episode is one of the most upsetting things for Louisa's parents, who take it in turns to remain with her. Doctors have told the family it's crucial to wake Louisa once a day to feed her and get her to the bathroom.

But Lottie admits it can take a while to get her to come round. "I've tried before to literally force her to wake up but she just starts swearing and gets so agitated and aggressive."
After watching a video the family made of her while sleeping, Louisa says: "I look scary, it doesn't look like me, it's like I'm on drugs."

Frustrated by the lack of information in the UK, Louisa was taken by her parents to the Hospital Pitié-Salpétrière in Paris, where researchers are looking into whether it is caused by a defective gene.

Many sufferers have abnormalities in their temporal lobe, the area of the brain involved in behaviour and memory. A scan of Louisa's brain function revealed she does have abnormalities in her frontal lobe but there are no signs that this has affected her behaviour or memory.
The good news is the disease can also disappear just as suddenly as it came on. This normally happens after 10 to 15 years.

But Louisa is currently going through a good period. She was out doing Christmas shopping with her best friend this week and has not had an episode in 13 weeks. A few weeks ago she won yet another dance competition.

"It's almost as if I've forgotten about it because I haven't had one in so long."
Louisa's parents, however, are still watching her constantly for signs she could be heading into a sleep state.
"It's weird - now I've left school I haven't actually had an episode, they probably think I was faking it," she jokes.

What is Kleine-Levin Syndrome?


KLS is a disease of adolescence, and sometimes will begin after infection or illness, says Tom Rico of the Center for Narcolepsy & KLS Research at Stanford University, California.
"An individual with KLS will have sleep episodes, typically lasting between one and three weeks, with coinciding cognitive disturbance in the few hours of wakefulness.
"During this time period, a patient will sleep anywhere between 16 to 22 hours a day, every day, until the conclusion of the episode."
But the excessive sleeping is only half the problem, he says, because when awake during the episode, patients experience what they describe as a "dream-like state".

Source: Frances CroninBBC News

Pythagoras, a math genius? Not by Babylonian standards

Over 1,000 years before Pythagoras was calculating the length of a hypotenuse, sophisticated scribes in Mesopotamia were working with the same theory to calculate the area of their farmland.

Working on clay tablets, students would "write" out their math problems in cuneiform script, a method that involved making wedge-shaped impressions in the clay with a blunt reed.

These tablets bear evidence of practical as well as more advanced theoretical math and show just how sophisticated the ancient Babylonians were with numbers -- more than a millennium before Pythagoras and Euclid were doing the same in ancient Greece.

"They are the most sophisticated mathematics from anywhere in the world at that time," said Alexander Jones, a Professor of the History of the Exact Sciences in Antiquity at New York University.

He is co-curator of "Before Pythagoras: The Culture of Old Babylonian Mathematics," an exhibition at the Institute for the Study of the Ancient World in New York.

"This is nearly 4,000 years ago and there's no other ancient culture at that time that we know of that is doing anything like that level of work. It seems to be going beyond anything that daily life needs," he said.

Many scribes were trained in the ancient city of Nippur in what is now southern Iraq, where a large number of tablets were discovered between the mid-19th century and the 1920s.

Typical problems they worked on involved calculating the area of a given field, or the width of a trench.
These problems, says Jones, required the kind of math training taught to American Grade 10 students, but not in a format we would now recognize.

"It's not like algebra, it's all written out in words and numerals but no symbols and no times signs or equals or anything like that," he said.

This system, and the lack of recognizable Western mathematical symbols such as x and y, meant that it was several years before historians and archaeologists understood just what was represented on these tablets.
It took a young Austrian mathematician in the 1920s, named Otto Neugebauer, to crack the mathematical system and work out what the ancient Babylonians were calculating. But despite his advances, it is only recently that interest in Babylonian math has started to take hold.

"I think that before Neugebauer and even after Neugebauer, there wasn't a lot of attention placed on mathematical training in Babylon even though we have this rich cuneiform history with the tablets," said Jennifer Chi, Associate Director for Exhibitions and Public Programs at Institute for the Study of the Ancient World.

When we think of ancient mathematics, the first names that come to mind are Pythagoras and Euclid. That shouldn't be the case.

One of the aims of the institute, she says, is to find interconnections between ancient cultures as well as look at what the institute sees as under-represented ancient cultures -- and the culture of ancient Babylonian math, she says, is ripe for popular revision.

"When we think of ancient mathematics, the first names that come to mind are Pythagoras and Euclid," she said, but that "this shouldn't be the case."
And though ancient Babylonia is often referred to in popular culture as a "lost" world, in fact much more evidence of mathematical learning from the period exists than from ancient Greece, said Chi.

Jones of New York University believes that there is much more that could be excavated but that, of course, current conditions in Iraq are not favorable. Still, there are enough tablets in collections across the world for mathematical historians to get stuck into.

For non-mathematicians, these tablets are a fascinating document of life in Mesopotamia. Most of the problems displayed are grounded in the everyday needs of ancient Babylonians.

But some tablets show the students engaging in what Jones calls "recreational math" -- math for math's sake.
"The only point of learning to do this kind of thing is really as a mental exercise, as a way of showing how smart you are," he said.

And it seems there is still more to learn from the Babylonians. Duncan Melville is a Professor of Mathematics at St. Lawrence University in Canton, New York, whose special interest is Mesopotamian mathematics.
According to Melville, teachers can continue to learn a thing or two about the way math was taught in Mesopotamia.

"You look at the way they set up their sequences of problems and it's all very carefully graduated, from simple problems to more complicated problems," he said.

"As a teacher of mathematics, it's very interesting to see how they organized their material," he continued. "There's still interesting things to learn from cutting-edge pedagogy 4,000 years ago."

With research continuing into this strand of ancient history, it remains to be seen whether Pythagoras's theorem will come to bear the name of an old Babylonian scribe instead.

Genes give clue to early puberty

At least 30 genes appear to play a role in the age at which girls reach puberty, according to an international group of scientists.

The team scanned the genetic code of more than 100,000 women, reporting their findings in the journal Nature Genetics.

In the UK, girls as young as 10 are now showing the first signs of puberty.

A specialist said early puberty was linked to an increased risk of female cancers later in life.
The reasons why girls are going through puberty several years earlier than a century ago are not well understood by scientists.

Some have suggested a relationship between early puberty and obesity, and the latest research, carried out by the Reprogen consortium of scientists from the US, Europe and Australia, supports this idea.
Among the 30 genes highlighted by their genome research were some already linked to fat metabolism and weight regulation.

However, it is still not clear whether being obese or overweight in childhood is itself the cause of early puberty, or just another consequence of a different mechanism.

In addition, the study does not show how much of the risk is due to genes, and how much other environmental factors such as diet and upbringing are responsible.

Fat stores

One author, Dr Ken Ong, from the Medical Research Council Epidemiology Unit in Cambridge, said: "We know that girls who are overweight are more likely to go through puberty at young ages.
You need to be aware that you may be laying down your future risk from childhood”
Professor Anthony Swerdlow,Institute of Cancer Research

"If rates of childhood obesity continue to rise we will see many more girls with puberty at young ages."
Dr Anna Murray, another of the researchers from Exeter University, suggested that holding larger stores of fat might signal to the brain that it had the resources to start a woman's reproductive life.

She said: "We found that the timing of puberty is related to fatty acid metabolic pathways - there is evidence that the brain can sense these types of body fats."
Aside from the confusion experienced by young children entering puberty, it carries other health risks in the longer term.

Professor Anthony Swerdlow, from the Institute of Cancer Research, said that early puberty meant a higher risk of female cancers, particularly breast cancer.
This was possibly due to a higher lifetime exposure to sex hormones such as oestrogen.

He said that good diet and exercise, or the lack of it, in early childhood might be crucial to health many decades later.
He said: "What we increasingly believe is that, at least for breast cancer, the risk starts very, very young, even before puberty.

"If you are to prevent it, you need to be aware that you may be laying down your future risk from childhood."

Proboscis Monkey

The Proboscis Monkey (Nasalis larvatus), known as the bekantan in Malay, or simply the Long-nosed Monkey. It is a reddish-brown arboreal Old World monkey that is endemic to the south-east Asian island of Borneo. It belongs in the monotypic genus Nasalis, although the Pig-tailed Langur has traditionally also been included in this genus - a treatment still preferred by some.

The monkey also goes by the Malay name monyet belanda 'Dutch monkey', or even Orang Belanda 'Dutchman', as Indonesians remarked that the Dutchcolonisers often had a similarly large belly and nose.

Appearance

A distinctive trait of this monkey is the male's large protruding nose, from which it takes its name. The big nose is thought to be used to attract females and is a characteristic of the males, reaching up to 7 inches in length. The females also have big noses compared to other monkey species, but not as big as the males. Besides attracting mates, the nose serves as a resonating chamber, amplifying their warning calls. When the animal becomes agitated its nose swells with blood, making warning calls louder and more intense.

Proboscis Monkeys belong to the order of Primates, from the family Cercopithecidae and subfamily Colobinae (Bennett & Gomber, 1993). According to Bennett & Gomber (1993), in the Old World, these monkeys are divided into two groups known as cercopithecines and colobines. Proboscis Monkeys are colobines. Males are much larger than females, weighing up to 24 kg (53 pounds) and reaching 72 cm (28 inches) in length, with a tail of up to 75 cm in length. Females are up to 60 cm long, weighing up to 12 kg (26 lb). This large sexual dimorphic difference is greater than in any other primate.

The adult Proboscis Monkey is mainly reddish-brown, with grayish limbs (Bennett & Gombek, 1993). According to Burnie (2001), young Proboscis Monkeys have a blue face, blackish fur and a relatively normal sized nose at birth. As they grow older, fur coloration changes and the nose grows. Adult males have a large and fleshy nose which overhangs its mouth, but the female Proboscis Monkey does not have a large nose in comparison to the male.

Ecology and habitat

The Proboscis Monkey is endemic to Borneo's low elevation mangrove forests, swamps, and lowland riparian forests.One of the largest populations is found in the Danau Sentarum National Park. It lives in small groups of 10 to 32 animals. Group membership is very flexible, and animals are known to move from group to group quite often.

The Proboscis Monkey's lifestyle is both arboreal and amphibious, with its mangrove swamp and riverine environment containing forest, dry land, shallow water allowing wading, and deep water requiring swimming. Like other similar monkeys, the Proboscis Monkey climbs well. It is also a proficient swimmer, often swimming from island to island, and has been picked up by fishing boats in open ocean a mile from shore. While wading, the monkey uses an upright posture, with the females carrying infants on their hip. Troops have been filmed continuing to walk upright, in single file, along forest trails when they emerge on land, the only non-human mammal, with the exception of gibbons and giant pangolins, known to use this form of locomotion for any length of time.

Proboscis Monkeys usually lives in a harem which comprises one adult male, several females, and their offspring, but sometimes the male and female Proboscis Monkeys move between social group. The Proboscis Monkey is mostly arboreal, but sometimes the animals migrate downriver into the mangrove forest to feed.

The monkey also has a large belly, a result of its diet[citation needed] Its digestive system is divided into compartments, with bacteria that digest cellulose and neutralize toxins from certain leaves. This lets the monkey eat leaves and remain in the forest canopy. The contents of their stomach weigh in at about a quarter of their whole body. The diet consists mainly of seeds, leaves, fruits, and mangrove shoots.



Source: From Wikipedia, the free encyclopedia

Scam: 'See who viewed your Facebook profile'!

Many of us are quite curious to know who viewed our Facebook profile. However, unfortunately scammers too are aware of this, and use the lure of such functionality as a way to trick users.

And, one such scam is again prowling on Facebook having claimed thousands of victims. The rogue application is spreading virally among Facebook users pretending to offer them a way of seeing who has viewed their profile.

According to security firm Sophos, "Messages spreading rapidly across the Facebook social network right now say: OMG OMG OMG... I can't believe this actually works! Now you really can see who viewed your profile!"

In fact, so far there is no application or way to find out who viewed your facebook profile. This means all those applications that promise you to show who has viewed your Facebook profile pages are actually scams.

Sophos warns that scams like these are used to earn commission for the mischief makers behind them, who have no qualms about using your Facebook profile to spread their spammy links even further.

However, in case, you've already fallen to the scam like this, remove references to it from your newsfeed, and revoke the right of rogue applications to access your profile via Account/ Privacy Settings/ Applications and Websites.

Stem cells turned injured rodents into mighty mice

(Reuters) - Injecting stem cells into injured mice made their muscles grow back twice as big in a matter of days, creating mighty mice with bulky muscles that stayed big and strong for the rest of their lives, U.S. researchers said on Wednesday.

If the same applies to humans, the findings could lead to new treatments for diseases that cause muscles to deteriorate, such as muscular dystrophy.

It may even help people resist the gradual erosion of muscle strength that comes with age, Bradley Olwin, of the University of Colorado at Boulder, and colleagues reported in the journal Science Translational Medicine.
"This was a very exciting and unexpected result," Olwin, who worked on the study, said in a statement.
"We found that the transplanted stem cells are permanently altered and reduce the aging of the transplanted muscle, maintaining strength and mass."

Olwin's team experimented on young mice with leg injuries, injecting them with muscle stem cells taken from young donor mice.

Stem cells are unique in that they can constantly renew themselves, and form the basis of other specialized cells.

These cells not only repaired the injury, but they caused the treated muscle to increase in size by 170 percent.
Olwin's team had thought the changes would be temporary, but they lasted through the lifetime of the mice, which was about two years.

"When the muscles were examined two years later, we found the procedure permanently changed the transplanted cells, making them resistant to the aging process in the muscle," Olwin said in a statement.
Olwin and colleagues said when they injected the cells into a healthy leg, they did not get the same effect, suggesting there is something important about injecting the cells into an injured muscle that triggers growth.

"The environment that the stem cells are injected into is very important, because when it tells the cells there is an injury, they respond in a unique way," he said.

The team hopes eventually to find drugs or combinations of drugs that mimic the behavior of transplanted cells," Olwin said.

The findings are encouraging for human research, but Olwin cautions that putting stem cells from young mice into other young mice is not the same thing as making old muscles young again.
And the study is in mice, not people.

But team is starting experiments to see if transplanting muscle stem cells from people or large animals into mice would have the same effects.

If they work, that would mean that transplanting human muscle stem cells might work.

The study was funded in part by the National Institutes of Health and the Muscular Dystrophy Association.
(Editing by Maggie Fox and Vicki Allen)

How the Cell Phone Is Changing the World

The impact of the ubiquitous device extends from politics to business, medicine, and war.
The modern mobile-phone era dates back only to the 1970s. In just 40 years, in the West, they’ve gone from suitcase-size novelty to ubiquity. And they’re no longer just luxury goods. More than 4 billion of the 6 billion people on earth now have a cell phone, with a quarter of those owners getting one in just the last two years. And many are using them, in a giant global experiment, to change the way life is lived, from Manhattan to Ouagadougou.

The phones now allow Masai tribesmen in Kenya to bank the proceeds from selling cattle; Iranian protesters to organize in secret; North Koreans to communicate with the outside world; Afghan villagers to alert Coalition soldiers to Taliban forces; insurgents to blow up roadside bombs in Iraq; and charities to see, in real time, when HIV drugs run out in the middle of Malawi.

“I was actually sitting around with a bunch of Ethiopian farmers recently,” says Duncan Green, research director for the charity Oxfam, “when I noticed that none of them had light or running water, but each family had a mobile phone.” The reasons are simpler than we think, he says. “Before, these farmers, if they wanted to check on a sick relative elsewhere, had to walk three hours in each direction. Now they just make a call.” That convenience, he says, drives their eager embrace of the phones. But the phones’ growing ubiquity—“they’re a technological Coca-Cola,” Green says—has other uses, too. Here are five ways they’re changing the world.



Exposing Secrets

On the Chinese border with North Korea, human-rights activists have a mission. They aim to persuade the few North Koreans allowed to travel outside the country to smuggle cell phones back in, and help open the most closed society in the world. (Mobile phones are officially allowed, but are strictly limited in range and closely monitored.) If discovered with their smuggled phones, the spies risk imprisonment and death, all in an effort to report on everything from pets to famine, and the swirl of story and counter-story that manages to penetrate dictator Kim Jong-il’s wall of silence. One such person, The New York Times reports, was executed by firing squad when authorities discovered his cell phone.


Advancing Democracy


Cell phones present a problem for oppressive regimes everywhere. So many Iranians were using text
messages to secretly organize protests against last year’s flawed elections thatthe government eventually shut down service entirely. The Finnish company Nokia Siemens was criticized by the European Parliament for providing the government the equipment to do so. China presumably has its own capability: when prominent democracy campaigner Liu Xiaobo won the Nobel Peace Prize last month, messages containing the Chinese characters for his name failed to send, reported the Associated Press. Unbowed, his supporters continue to make their voices heard in the West. By cell phone, of course. In Africa, Green says, people are able to report violent incidents and government oppression in a way they couldn't before. “It’s kind of the first time they’ve had bottom-up democracy,” he says.


Enabling Commerce


In Tanzania, reports the BBC, only 5 percent of people have a bank account. In Kenya, there is one bank branch per 100,000 people. It’s a situation that is repeated in many developing countries, including such potential powerhouses as India. The solution, for some, has come through the cell phone.

 In Uganda, where villages often have one top-up phone run by a trusted operator, a basic system helps store and transfer money. In a TED talk in 2007, Jan Fishman, an analyst for Frog Design, a global innovation firm, outlined a common method of banking using a cell phone where there are no banks.

A villager, working hundreds of miles away from home, buys a cell-phone refill card with his earnings. To send his money back to the village, he calls the operator, who tops up the phone using the card. The operator, having taken a commission, then hands cash on to whoever has been authorized.

 In India, the systemhas been formalized and is supported by the Bank of India. In Kenya, the main service, M-Pesa, moves millions of dollars per day by text message. In the East African nation, the ability to SMS means that Masai farmers can bank the money from the sale of a cow instead of carrying the cash. One minor difficulty, says Green, is that the same farmer will sometimes spend money he should be using for food on a shiny new phone. “But that’s just people,” he says.


Distributing Medicine


Stock-outs—which is what it’s called when isolated clinics in countries such as Kenya, Uganda, Malawi, and Zambia run out of antimalaria medicine, zinc tablets, penicillin, HIV and AIDS drugs, and diarrhea treatments—are potentially deadly, even as their occurrence often is denied by local governments.

A new project, Stop Stock-Outs, aims to use cell phones to solve the problem. Activists send a simple text message to a central number reporting which drugs are out of stock. The information is collated in a virtually real-time map, on which bright red dots signify a dangerous shortage.


Waging War

In Afghanistan, The Wall Street Journal reports, the Taliban have forced local cell-phone-service providers to shut down their towers at night. The move is designed to stop locals reporting Taliban movements to Coalition forces. NATO troops, meanwhile, also black out entire areas of cell coverage before an offensive to prevent insurgents from remotely detonating roadside bombs, says one official who did not want to be named discussing operational details. Suppressing the devices will become harder and harder for both sides—cell phones are one of the few economic bright spots in the country. Hundreds of thousands of Afghans now have one.

Source:Newsweek

Electric current to the brain 'boosts maths ability

Applying a tiny electrical current to the brain could make you better at learning maths, according to Oxford University scientists.

They found that targeting a part of the brain called the parietal lobe improved the ability of volunteers to solve numerical problems.

They hope the discovery could help people with dyscalculia, who may struggle with numbers.
Another expert said effects on other brain functions would need checking.

The findings are reported in the journal Current Biology.

Some studies have suggested that up to one in five people have trouble with maths, affecting not just their ability to complete problems but also to manage everyday activities such as telling the time and managing money.

Neuroscientists believe that activity within the parietal lobe plays a crucial role in this ability, or the lack of it.
When magnetic fields were used in earlier research to disrupt electrical activity in this part of the brain, previously numerate volunteers temporarily developed discalculia, finding it much harder to solve maths problems.

Persistent benefits


The latest research goes a step further, using a one milliamp current to stimulate the parietal lobe of a small number of students.

The current could not be felt, and had no measurable effect on other brain functions.

As it was turned on, the volunteers tried to learn a puzzle which involved substituting numbers for symbols.

Those given the current from right to left across the parietal lobe did significantly better when given, compared to those who were given no electrical stimulation.

The direction of the current was important - those given stimulation running in the opposite direction, left to right, did markedly worse at these puzzles than those given no current, with their ability matching that of an average six-year-old.

The effects were not short-lived, either. When the volunteers whose performance improved was re-tested six months later, the benefits appear to have persisted.

There was no wider effect on general maths ability in either group, just on the ability to complete the puzzles learned as the current was applied.

Dr Cohen Kadosh, who led the study, said: "We are not advising people to go around giving themselves electric shocks, but we are extremely excited by the potential of our findings and are now looking into the underlying brain changes.

"We've shown before that we can induce dyscalculia, and now it seems we might be able to make someone better at maths, so we really want to see if we can help people with dyscalculia.

"Electrical stimulation is unlikely to turn you into the next Einstein, but if we're lucky it might be able to help some people to cope better with maths."

Dr Christopher Chambers, from the School of Psychology at Cardiff University, said that the results were "intriguing", and offered the prospect not just of improving numerical skills, but having an impact on a wider range of conditions.

He said: "The ability to tweak activity in parts of the brain, turning it slightly 'up' or 'down' at will, opens the door to treating a range of psychiatric and neurological problems, like compulsive gambling or visual impairments following stroke."
However, he said that the study did not prove that the learning of maths skills was improved, just that the volunteers were better at linking arbitrary numbers and symbols, and he warned that researchers needed to make sure other parts of the brain were unaffected.

"This is still an exciting new piece of research, but if we don't know how selective the effects of brain stimulation are then we don't know what other brain systems could also be affected, either positively or negatively."

Sue Flohr, from the British Dyslexia Association, which also provides support for people with dyscalculia, said the research was welcome.

She said: "It's certainly an under-recognised condition, but it can ruin lives.
"It makes it very hard to do everyday things like shopping or budgeting - you can go into a shop and find you've spent your month's money without realising it."

Source:BBC

6 New Stress Management Strategies That Work

Everything You Think You Know About Beating Stress Is Wrong
Read on for six smart new stress relief strategies to start now

If deep breaths, weekly yoga classes, and venting to your friends aren't helping you to stop stressing out and relax, you have plenty of company--and it's not your fault. New studies show that these supposedly tried-and-true anxiety busters are often just... well, a bust. Read on for the surprising truth about what really helps manage stress--and what doesn't--when it comes to relieving chronically fried nerves.

1. Yesterday's wisdom: Never go to bed angry
Today's smart stress strategy: Just get some sleep already

When you're mid-dustup and about to wring your husband's neck, the last thing you feel like doing is curling up in bed beside him. But deep down, many of us worry that going to bed angry just tempts fate. So we bargain, cajole, and then fight some more in an effort to resolve the dispute, thinking all will be well by the morning if we can just reach a resolution.







2. Yesterday's wisdom: Control your temper
Today's smart stress strategy: Throw a tantrum now and then

From the time we're little girls, we're taught to control our tempers, and as adults--especially women--we still believe that venting anger is unhealthy (not to mention unladylike). In fact, the opposite now appears to be true. According to a study published in Biological Psychiatry that looked at the effect of facial expressions of emotions, such as fear and indignation, on our stress responses, displaying your anger may actually cause your brain to release less cortisol, the stress hormone associated with obesity, bone loss, and heart disease.

And while experts know that chronic anger contributes to hypertension and coronary disease, they've also found that expressing irritation in response to a short-term and unfair frustration, such as being cut off in traffic, can actually dampen the nasty effects of stress. That's because anger confers feelings of control, counteracting the helplessness and frustration we often feel in response to perceived insults and injustices, says lead study author Jennifer Lerner, PhD.

The fact is, forcing a discussion by bedtime can actually make things worse, says Andrea K. Wittenborn, PhD, an assistant professor in the marriage and family therapy program at Virginia Polytechnic Institute and State University. When you're upset, a part of the brain called the amygdala cues the fight-or-flight response, limiting your ability to have a calm, rational discussion. So it's a good idea to hold off on any showdown until you cool off.

"Taking a time-out or even a night off is critical, because once you've activated the fight-or-flight system, you can't simply tell it to turn off," says Ronald Potter-Efron, PhD, author of Rage: A Step-by-Step Guide to Overcoming Explosive Anger. "If you're already angry or frustrated, you become emotionally flooded and unable to think clearly." Plus, sleep is a powerful antidote to stress, says Russell Rosenberg, PhD, director of the Atlanta Sleep Medicine Clinic and vice chairman of the National Sleep Foundation.

Instead, agree to call a truce until morning, and make sure to actually talk things out the next day. "Completely dropping issues that really bug you can be damaging to your relationship and contribute to increased stress," warns Dr. Wittenborn.

3. Yesterday's wisdom: Turn to family and friends for support
Today's smart stress strategy: Cuddle up with your pet

Hanging out with loved ones has long been touted as an instant mood-booster, but according to new scientific evidence, when it comes to managing stress, the calming effects of spending time with a furry friend trump those obtained by hanging out with friends and family. "Having your pet, whether a cat or a dog, with you during a stressful event turns out to be more soothing than a best friend or a spouse," says James J. Blascovich, PhD, a professor of psychology at the University of California, Santa Barbara.

Dr. Blascovich and colleagues asked volunteers to perform difficult math problems while in the company of their spouse, a friend, or their pet. Using heart rate and blood pressure as measures of stress, the researchers found that people strained the least and performed the best when in the company of their cat or dog. While spending time with a friend or spouse can be a great way to relax, sidle up to your pet when the pressure's on.


4. Yesterday's wisdom: Express your feelings
Today's smart stress strategy: Keep it to yourself

In our tell-all, Oprah-fied culture, we've come to believe that sharing our feelings is the only way to deal with life's struggles. But just the opposite is often true. "We've long thought that talking about problems is always better, but there's also evidence suggesting that this coping style doesn't work for everybody," explains Karin Coifman, PhD, an assistant professor of clinical psychology at Kent State University.

Dr. Coifman and colleagues looked at how people whose spouse or child had just died coped with their loss. They learned that many of the subjects who avoided thinking or talking about their sadness--a style psychologists call repressive coping--had fewer short-term health problems, such as sore throats, diarrhea, and shortness of breath, as well as a lower incidence of long-term psychological problems. What's more, they returned to their everyday lives more quickly than those who dwelled upon their grief.

"There's a lot to be said for getting on with the business of living," says Dr. Coifman. "People who talk endlessly about their problems are actually the ones at greater risk of depression." In fact, researchers at the University of Missouri, Columbia, found that participants who repeatedly expressed their sadness or disappointment were more likely to develop depression and anxiety.

That doesn't mean you should just suck it up when something bad happens. While you shouldn't deny yourself natural grieving moments, learning to direct your attention away from the stressor is a powerful coping mechanism. So after experiencing that initial burst of tears, turn to something positive--check in on a friend or rearrange your furniture. It's an important skill to look beyond the bad--we wouldn't survive as a species otherwise, Dr. Coifman adds.

5. Yesterday's wisdom: Never soothe yourself with food
Today's smart stress strategy: Treat yourself to chocolate

We've been warned that bingeing on cookies and ice cream is a poor way to ease a worried state of mind and can actually create more anxiety. But here's a sweet exception to the rule: Indulging in a little chocolate can actually help. According to new findings published in the Journal of Proteome Research, eating a few pieces of dark chocolate when you're feeling on edge can help calm your nerves. (Unfortunately for you milk chocolate lovers, the researchers believe the flavonoids in dark chocolate are responsible for this soothing effect.) In the study, stressed-out participants who ate 1½ ounces of dark chocolate a day for 2 weeks had reduced levels of stress hormones. We can't think of a better way to treat yourself to some dessert, guilt- and stress-free!

6. Yesterday's wisdom: "Om" your way to calmness
Today's smart stress strategy: Do something you love

For some people, meditation is the secret to serenity, but for others, it's a fast track to frayed nerves. In fact, in a study published in the Journal of Consulting and Clinical Psychology, 54% of participants reported feeling anxious while meditating! "There is no evidence that meditation 'cools off' the body's stress response better than any other type of stress reduction technique, so you have to find what works for you," insists Jonathan C. Smith, PhD, director of the Stress Institute at Roosevelt University.

Anything that allows you to disengage from your thoughts can help you relax. One way meditation works is by breaking the chain of everyday thoughts, which are often tied to our to-do lists and other stressors, according to Herb Benson, MD, director emeritus of the Benson-Henry Institute for Mind Body Medicine at Massachusetts General Hospital in Boston and author of Relaxation Revolution. While chanting a mantra certainly helps to quiet your mind, if meditating is not your thing, any repetitive activity that keeps your attention in the present moment, including jogging, swimming, painting, walking, knitting, or praying, will work just as well, he says.

Source:Prevention Magazine