Sunday, October 28, 2012

Brain map predicts people’s ‘visual world’

U. PENNSYLVANIA (US) — Scientists have created a map of vision in the brain based upon an individual’s brain structure, even for people who cannot see
Link

Nearly 100 years after a British neurologist first mapped the blind spots caused by missile wounds to the brains of soldiers, Perelman School of Medicine researchers at the University of Pennsylvania have perfected his map using modern-day technology.
Their result can, among other things, guide efforts to restore vision using a neural prosthesis that stimulates the surface of the brain. The study appears in the latest issue of Current Biology.

How to Raise High-Achieving Kids


Here’s a novel recipe for raising successful kids: see that they’re born overseas, but bring them to America before they hit their teens.
That, at least, is the implication of a new study by sociologists at Johns Hopkins University who tracked 10,795 adolescents into young adulthood.
Basically, the sociologists found that the immigrant teens beat the pants off native born children in academic achievement and, as adults, psychological well-being. American born children of immigrants also seemed to enjoy an advantage. The researchers adjusted for socioeconomic background and school conditions, so they were comparing apples to apples.

Saturday, October 27, 2012

Body’s ‘pre-feelings’ may detect the future

NORTHWESTERN (US) — Your body may anticipate what’s going to happen—even before your brain has an inkling of what’s to come, researchers report.
Link

Friday, October 26, 2012

You Are What You Eat..

Humans run on a fuel called food.  Yet economists and other social scientists rarely study what people eat.  We provide simple evidence consistent with the existence of a link between the consumption of fruit and vegetables and high well-being.  In cross-sectional data, happiness and mental health rise in an approximately dose-response way with the number of daily portions of fruit and vegetables.
(..)

One major note: the researchers caution that reverse causality may be an issue. That is, rather than fruit and vegetables causing well-being, it may be that well-adjusted people prefer eating a lot of fruit and vegetables. The authors recommend additional “randomized trials to explore the consequences for mental health of different levels of fruit-and-vegetable consumption.”
Link

The Island Where People Forget To Die

This is a good article that touches not only upon diet, but also lifestyle, community etc...
(I can see myself spending my days playing guitar and hanging out with friends and family in Ikaria :)
Uvealblues

Link

Ikaria, an island of 99 square miles and home to almost 10,000 Greek nationals, lies about 30 miles off the western coast of Turkey. Its jagged ridge of scrub-covered mountains rises steeply out of the Aegean Sea. Before the Christian era, the island was home to thick oak forests and productive vineyards. Its reputation as a health destination dates back 25 centuries, when Greeks traveled to the island to soak in the hot springs near Therma. In the 17th century, Joseph Georgirenes, the bishop of Ikaria, described its residents as proud people who slept on the ground. “The most commendable thing on this island,” he wrote, “is their air and water, both so healthful that people are very long-lived, it being an ordinary thing to see persons in it of 100 years of age.”
(..)
This Following the report by Pes and Poulain, Dr. Christina Chrysohoou, a cardiologist at the University of Athens School of Medicine, teamed up with half a dozen scientists to organize the Ikaria Study, which includes a survey of the diet of 673 Ikarians. She found that her subjects consumed about six times as many beans a day as Americans, ate fish twice a week and meat five times a month, drank on average two to three cups of coffee a day and took in about a quarter as much refined sugar — the elderly did not like soda. She also discovered they were consuming high levels of olive oil along with two to four glasses of wine a day.

Wednesday, October 24, 2012

Presenting the Work of A Master Craftsman...


Anders Eliasson is a fantastic luthier, renown for his flamenco and classical guitars.
He is based out of a small town in Spain: Huelva. He builds each of his guitars by hand and is quite well respected for his artistry....I feel very fortunate to have learned about his work...

Below is  the link about a very special guitar...(at least to me)
Uveal blues



Building guitar number 100   Link


Here is a video of Anders playing some Fandangos on this Flamenco Blanca:

Test Your DNA for Diseases — No Doctor Required

Tuesday, October 23, 2012

Ray “Smartphone for the Blind” Features Tactile & Audio Interface

Qualcomm has partnered with Project RAY, a group devoted to improving the lives of blind and visually challenged people through technology, to create a smartphone specifically for those that can’t see. There’s a variety of apps developed for smartphones that take advantage of technology originally developed for sighted folks to help those that are blind.
Link

Blues!


A Berry So Shiny, It's Irresistible (And Inedible)


Steiner measured that intensity. It's the result of how unusually reflective the berry's skin is. Most surfaces reflect just a small percentage of the light that hits them. However, this berry reflects 30 percent of the light.
In the study, published in the Proceedings of the National Academy of Sciences, Steiner says its reflectivity is more intense than any living thing. "We find that it is more intense than, for example, the morpho butterfly, which is usually cited for being one of the most brilliantly colored animals.

True Blue Stands Out in an Earthy Crowd

Scientists, too, have lately been bullish on blue, captivated by its optical purity, complexity and metaphorical fluency. They’re exploring the physics and chemistry of blueness in nature, the evolution of blue ornaments and blue come-ons, and the sheer brazenness of being blue when most earthly life forms opt for earthy raiments of beige, ruddy or taupe.
(..)
As a raft of surveys has shown, blue love is a global affair. Ask people their favorite color, and in most parts of the world roughly half will say blue, a figure three to four times the support accorded common second-place finishers like purple or green. Just one in six Americans is blue-eyed, but nearly one in two consider blue the prettiest eye color, which could be why some 50 percent of tinted contact lenses sold are the kind that make your brown eyes blue.

Monday, October 22, 2012

Swishing soda in your mouth can boost self-control (seriously)


A spoonful of sugar makes the willpower go up, according to a series of studies that have suggested fueling the brain with sweets can strengthen self-control. Now, new research finds that sugar's potential may be greater than expected: You don't even need to swallow to get the benefits of sweetness.
Simply swishing a glucose-laden drink in the mouth and spitting it out boosted self-control and willpower for tasks from squeezing a handgrip to completing impossible brain teasers, the new study found.

Thursday, October 18, 2012

In Africa, 15M cell phones map malaria

Phone calls and text messages from 15 million mobile phones may help track the spread of malaria in sub-Saharan Africa, new research shows
Link

Edward Nahim: Sierra Leone’s Only Psychiatrist


Sierra Leone is trying to heal its wounds in the aftermath of one of Africa’s most brutal civil wars—but there’s only one psychiatrist around to treat the nation’s trauma.

Get Up. Get Out. Don’t Sit.


Just as we were all settling in front of the television to watch the baseball playoffs, two new studies about the perils of sitting have spoiled our viewing pleasure.
The research, published in separate medical journals this month, adds to a growing scientific consensus that the more time someone spends sitting, especially in front of the television, the shorter and less robust his or her life may be.(..)
and the findings were sobering: Every single hour of television watched after the age of 25 reduces the viewer’s life expectancy by 21.8 minutes.
By comparison, smoking a single cigarette reduces life expectancy by about 11 minutes, the authors said.
Looking more broadly, they concluded that an adult who spends an average of six hours a day watching TV over the course of a lifetime can expect to live 4.8 years fewer than a person who does not watch TV.
Those results hold true, the authors point out, even for people who exercise regularly. 

Wednesday, October 17, 2012

Can you really predict what will make you happy?


Here’s what most people think will make them happy, in order of importance:
A survey of more than 2,015 people conducted by the British research company Ipsos MORI revealed that people believe the following five factors are most likely to enhance happiness (they are listed in order of importance).
1) More time with family
2) Earning double what I do now
3) Better health
4) More time with friends
5) More traveling
Are they right?

Monday, October 15, 2012

Looking for a Google


Can the spirit of enterprise be taught?

WORLD-BEATING companies that began in garages—think of Amazon, Apple or Google—are revered in the West. Developing countries can boast one or two examples of their own: India’s Tata and South Korea’s Samsung began life as small trading companies; Thailand’s Charoen Pokphand Group, an agri-business firm, started as a seed shop. But these are exceptions. Of the millions of small enterprises in poor countries, hardly any grow big and strong. The World Bank’s new World Development Report* looks at what can be done to help start-ups in poor countries become the next Google
(..)
The question is what can be done to improve matters. Obviously, good infrastructure and a welcoming investment climate matter. Governments have tried providing cheap loans or grants to pay the wages of an extra employee. This had no effect. Nor did giving special grants to female business owners, as happened in Ghana. But free management training did help. The trouble is that most enterprises see no point in it: asked whether lack of management expertise was a problem, only 3% of Brazilian small firms said yes.
Learning from abroad, though, makes a big difference. In 1979 Desh, a Bangladeshi garments firm, sent 130 of its staff for an eight-month course at a South Korean textile plant. At the time, Bangladesh had no textile exports and no modern industry. When the trainees got back, almost all of them set up their own firms. Today Bangladesh has 3.6m textile workers, 80% of them women, generating $13 billion of exports a year. Mr Yunus should be proud.

Lacking Teachers and Textbooks, India’s Schools Turn to Khan Academy to Survive


CHENNAI — In a country where teachers are in short supply and decent textbooks are hard to find, Indian schools are pinning their hopes on a free online tutorial service based in the United States.
A few Indian schools are already using Khan Academy, which offers lessons on numerous subjects through online videos, to cement math and science fundamentals, cut student absenteeism, boost test scores and in some cases, to simply survive. But these one-time school initiatives could gain traction from an effort to dub 450 of the 3,400 English-language Khan Academy videos in at least three Indian languages, as well as other efforts to make them more accessible to Indian students.

Saturday, October 13, 2012

Drunk With Power

This is a great article on arguably, one of the most colorful writers in the wine world. I get his daily emails just for his writing and do occasionally succumb to buying some of his unusual wine selections...
Uvealblues

Jon Rimmerman sells $30 million worth of wine a year over e-mail. How? Well, let him tell you a little story about a young syrah he once swilled outside Walla Walla
(..)
He realized he had the seeds of his own start-up in that wine letter. He’d already switched to e-mail, picking up several hundred new subscribers who often asked where to buy the wines. It was a no-brainer to start selling them. All he needed now, Rimmerman decided, was a clear sense of mission — a brand identity, in other words, centered on making the world a better place instead of just making a buck. Rimmerman claims that he made two lists — things he liked about the wine business, and things he did not — and decided that his company’s goal would be to transform the industry until his “don’t like” column was empty.
Link

Thursday, October 11, 2012

Lara Logan 2012 BGA Speech on Afghanistan

This App Identifies Dollar Bills for the Blind

A new mobile app helps the visually impaired count dollar bills with the help of a smartphone camera.
Link

Women Entrepreneurs Drive Growth in Africa

KAMPALA, UGANDA — Far too often, in the view of Africa’s budding female entrepreneurs, their continent is characterized as the recipient of aid that enables residents just to struggle by, and as a place that mistreats and marginalizes its women.
(..)

It was into this world, and against it, says Bethlehem Tilahun, that her shoe company SoleRebels was born.
“I kept hearing over and over the phrase ‘poverty alleviation,”’ said Ms. Tilahun, now a footwear mogul whose company grossed $2 million in sales this past year. “The media, preoccupied with a singular narrative about ‘Africa’ that missed the story of Africa — part of a larger spectrum of endless entities that have monopolized Africa’s image, our brand.”
With SoleRebels, she said proudly, “We’ve inverted the whole paradigm.”
Ms. Tilahun, 33, is one of a cresting wave of African entrepreneurs who are harnessing Africa’s businesses and brands as the continent enjoys its greatest economic success in generations. The International Monetary Fund now forecasts, admittedly in a recession-plagued world, that Africa will have the fastest-growing economy of any continent over the next five years.
Many of the new entrepreneurs of Africa are women.

Her ‘Crime’ Was Loving Schools

Twice the Taliban threw warning letters into the home of Malala Yousafzai, a 14-year-old Pakistan girl who is one of the world’s most persuasive advocates for girls’ education. They told her to stop her advocacy — or else.

She refused to back down, stepped up her campaign and even started a fund to help impoverished Pakistani girls get an education. So, on Tuesday, masked gunmen approached her school bus and asked for her by name. Then they shot her in the head and neck.
“Let this be a lesson,” a spokesman for the Pakistani Taliban, Ehsanullah Ehsan, said afterward. He added that if she survives, the Taliban would again try to kill her.
Surgeons have removed a bullet from Malala, and she remains unconscious in critical condition in a hospital in Peshawar. A close family friend, Fazal Moula Zahid, told me that doctors are hopeful that there has been no brain damage and that she will ultimately return to school.
(..)
These events coincide with the first international Day of the Girl on Thursday, and they remind us that the global struggle for gender equality is the paramount moral struggle of this century, equivalent to the campaigns against slavery in the 19th century and against totalitarianism in the 20th century.

The Ames Illusion


“Big” me. “Little” me. Watch these two versions of me–which are really the same size–explain why I appear petite in one place on screen and large in another. The reason, in short, is that I have been trapped in a clever visual illusion, one invented 78 years ago by American opthalmologist Adelbert Ames Jr. In the HBO movie “Temple Grandin,” the main character (Grandin) recreates the same illusion for a class assignment. Watch the scene here. The video below deconstructs the trick that Ames and Grandin play on our eyes.


Diss Information: Is There a Way to Stop Popular Falsehoods from Morphing into "Facts"?

False information is pervasive and difficult to eradicate, but scientists are developing new strategies such as "de-biasing," a method that focuses on facts, to help spread the truth.
(..)

"You have to be careful when you correct misinformation that you don't inadvertently strengthen it," says Stephan Lewandowsky, a psychologist at the University of Western Australia in Perth and one of the paper's authors. "If the issues go to the heart of people's deeply held world views, they become more entrenched in their opinions if you try to update their thinking."
Psychologists call this reaction belief perseverance: maintaining your original opinions in the face of overwhelming data that contradicts your beliefs. Everyone does it, but we are especially vulnerable when invalidated beliefs form a key part of how we narrate our lives

Half of the Facts You Know Are Probably Wrong

Since scientific knowledge is still growing by a factor of ten every 50 years, it should not be surprising that lots of facts people learned in school and universities have been overturned and are now out of date.  But at what rate do former facts disappear? Arbesman applies the concept of half-life, the time required for half the atoms of a given amount of a radioactive substance to disintegrate, to the dissolution of facts. For example, the half-life of the radioactive isotope strontium-90 is just over 29 years. Applying the concept of half-life to facts, Arbesman cites research that looked into the decay in the truth of clinical knowledge about cirrhosis and hepatitis. “The half-life of truth was 45 years,” reported the researchers.
(..)
Facts are being manufactured all of the time, and, as Arbesman shows, many of them turn out to be wrong. Checking each by each is how the scientific process is supposed work, i.e., experimental results need to be replicated by other researchers. How many of the findings in 845,175 articles published in 2009 and recorded in PubMed, the free online medical database, were actually replicated? Not all that many. In 2011, a disheartening study in Nature reported that a team of researchers over ten years was able to reproduce the results of only six out of 53 landmark papers in preclinical cancer research.
Link
Via Simolenonsense

Tuesday, October 09, 2012

Heaven is real, says neurosurgeon who claims to have visited the afterlife


Dr. Eben Alexander has taught at Harvard Medical School and has earned a strong reputation as a neurosurgeon. And while Alexander says he's long called himself a Christian, he never held deeply religious beliefs or a pronounced faith in the afterlife.
But after a week in a coma during the fall of 2008, during which his neocortex ceased to function, Alexander claims he experienced a life-changing visit to the afterlife, specifically heaven.

Wednesday, October 03, 2012

High Stress Can Make Insulin Cells Regress


THE INVESTIGATORS
Chutima Talchai and Dr. Domenico Accili, Columbia University.
For years, researchers have investigated how the body loses the ability to produce enough insulin, a hallmark of diabetes. Now an intriguing theory is emerging, and it suggests a potential treatment that few scientists had considered.
The hormone insulin helps shuttle glucose, or blood sugar, from the bloodstream into individual cells to be used as energy. But the body can become resistant to insulin, and the beta cells of the pancreas, which produce the hormone, must work harder to compensate. Eventually, the thinking goes, they lose the ability to keep up. “We used to say that the beta cells poop out,” said Alan Saltiel, director of the Life Sciences Institute at the University of Michigan. In reality, he added, this shorthand meant “we have no idea what’s going on.”
Some evidence suggested that large numbers of these cells died through a process of programmed cell death called apoptosis. But that was at best a partial explanation. Now, researchers at Columbia University have put forth a surprising alternative.

Sunday, September 30, 2012

The Blind Man Who Taught Himself to See

The Blind Man Who Taught Himself to See

Daniel Kish has been sightless since he was a year old. Yet he can mountain bike. And navigate the wilderness alone. And recognize a building as far away as 1,000 feet. How? The same way bats can see in the dark.
(..)
Kish and a handful of coworkers run a nonprofit organization called World Access for the Blind, headquartered in Kish's home. World Access offers training on how to gracefully interact with one's environment, using echolocation as a primary tool. So far, in the decade it has existed, the organization has introduced more than 500 students to echolocation. Kish is not the first blind person to use echolocation, but he's the only one to meticulously document it, to break it down into its component parts, and to figure out how to teach it. His dream is to help all sight-impaired people see the world as clearly as he does.

Read more: http://www.mensjournal.com/magazine/the-blind-man-who-taught-himself-to-see-20120504#ixzz27ygblWpM



L

Friday, September 28, 2012

A Peace Corps For Doctors, Built By A Senator's Daughter


Fifty years ago President Kennedy started the Peace Corps with the promise that it would train doctors in faraway lands. But, you may be surprised to know, the Peace Corps has never actually recruited doctors and nurses as mentors and medical educators.
Dr. Vanessa Kerry wants to fulfill that promise.
The 35-year-old physician — a daughter of Sen. John Kerry — has created a partnership with the Peace Corps to send doctors and nurses abroad. In return a non-profit pays off part of school loans.
"It's a Peace Corps for doctors and nurses," Kerry tells Shots. The goal of the Global Health Service Partnership, as it is tentatively called, is to reduce the severe shortage of medical workers in developing countries.
(..)
The Global Health Service Partnership volunteers won't just provide on-the-spot medical care. Kerry says they'll be teachers and mentors to local doctors, augmenting faculties of medicine and nursing.
"We've been very clear that these people are there to provide faculty support and integrate with faculty in these institutions," Kerry says. This way, they can grow local health systems in a sustainable way.
She thinks that might eventually help reverse the medical brain drain that plagues many developing countries. "If we can build up opportunities and create a better academic environment, that can build up retention [of local doctors]," she says.
Health professionals often migrate not just because they can make more elsewhere but because they can't practice the kind of medicine they want to at home, she says. By raising the standard, they might stay.
"People want to stay in their country, they want to stay with their family," Kerry says. The opportunities just have to be built.

Thursday, September 27, 2012

In Obama’s Speech, Their Voices

When President Obama made a landmark speech against modern slavery on Tuesday, many of us in the news media shrugged. It didn’t fit into the political narrative. It wasn’t controversial, so — yawn — it wasn’t really news.

But women like Sina Vann noticed. She’s a friend of mine who was trafficked as a young girl from Vietnam into Cambodian brothels — where she was regularly punished by being locked inside coffins with scorpions and biting ants. Now an anti-trafficking activist with the Somaly Mam Foundation, she sent me an exuberant e-mail (in fractured English, her third language) with a message for Obama: “We are survivors here so proud of you, you are the big president in U.S. and you take action of trafficking. So you give victims from around the world have hope.”

Link

Facing temptation, brain sends mixed signals

Scientists have figured out what happens in the brain during self-regulation—such as wanting dessert but knowing you really shouldn’t.
Link

“This research suggests a reason why it feels so difficult to control your behavior,” Hutcherson says. “You’ve got these really fast signals that say, go for the tempting food. But only after you start to go for it are you able to catch yourself and say, no, I don’t want this.”

Wednesday, September 26, 2012

Fish Oil Supplement Research Remains Murky


Fish Oil Supplement Research Remains Murky

If you've been following the media trail on fish oil lately, you've probably been tempted to forgo the smelly capsules. A systematic review of 20 studies published last week inJAMA The Journal of the American Medical Association reported that neither eating extra helpings of fish nor taking fish oil supplements reduces the risk of stroke, heart attack or death. 

Sunday, September 23, 2012

The Case For Optimism

Bill Clinton's Global (Optimistic) Perspective

Our world is more interdependent than ever. Borders have become more like nets than walls, and while this means that wealth, ideas, information and talent can move freely around the globe, so can the negative forces shaping our shared fates. The financial crisis that started in the U.S. and swept the globe was further proof that--for better and for worse--we can't escape one another.
There are three big challenges with our interdependent world: inequality, instability and unsustainability. The fact that half the world's people live on less than $2 a day and a billion people on less than $1 a day is stark evidence of inequality, which is increasing in many places. We're feeling the effects of instability not only in the global economic slowdown but also in the violence, popular disruptions and political conflicts in the Middle East and elsewhere. And the way we produce and use energy is unsustainable, changing our climate in ways that cast a shadow over our children's future.
But I firmly believe that progress changes consciousness, and when you change people's consciousness, then their awareness of what is possible changes as well--a virtuous circle. So it's important that the word gets out, that people realize what's working. That where there's been creative cooperation coupled with a communitarian view of our future, we're seeing real success. That's the reason I try to bring people together every year for the Clinton Global Initiative (CGI). Here are five areas in which there has been concrete, measurable and reproducible progress.


Read more: http://www.time.com/time/magazine/article/0,9171,2125031,00.html#ixzz27KavxTyP

Eating for Health, Not Weight

ALMOST half of Americans are on a diet — not surprising, since two-thirds are overweight or obese, a frightening statistic that inspired Mayor Michael R. Bloomberg to push through a ban on large soft drinks in New York City. The country is preoccupied with calories. McDonald’s, for instance, is now posting them.
(..)

In 35 years of medical research, conducted at the nonprofit Preventive Medicine Research Institute, which I founded, we have seen that patients who ate mostly plant-based meals, with dishes like black bean vegetarian chili and whole wheat penne pasta with roasted vegetables, achieved reversal of even severe coronary artery disease. They also engaged in moderate exercise and stress-management techniques, and participated in a support group. The program also led to improved blood flow and significantly less inflammation which matters because chronic inflammation is an underlying cause of heart disease and many forms of cancer. (..)
Also, we found that it changed gene expression in over 500 genes in just three months, “turning on” genes that protect against disease and “turning off” genes that promote breast cancer, prostate cancer, inflammation and oxidative stress. 
(..)
 It’s not low carb or low fat. An optimal diet is low in unhealthful carbs (both sugar and other refined carbohydrates) and low in fat (especially saturated fats and trans fats) as well as in red meat and processed foods. 

Friday, September 21, 2012

Life Regrets Of The Dying – How To Live Life With No Regrets


Here’s a list of the five most common regrets her patients had:
  1. I wish I’d had the courage to live a life true to myself, not the life others expected of me.
  2. I wish I didn’t work so hard.
  3. I wish I’d had the courage to express my feelings.
  4. I wish I had stayed in touch with my friends.
  5. I wish that I had let myself be happier

A Digital Tool to Unlock Learning


When we think about education reform, we usually focus on teacher quality. The big battleground in education revolves around holding teachers accountable for their performance. With all the focus on teachers, however, one group that is often forgotten as a key learning resource are the students themselves.
One way to help students gain agency over their own education is through technology. Despite the Internet revolution, the field of K-12 education has been relatively slow to respond to digital media. That’s why I paid a visit last week to the site of a promising experiment in digital learning in New York: the Bea Fuller Rodgers Middle School in Washington Heights.

For Weigh Loss, Less Exercise May Be More


Most people who start working out in hopes of shedding pounds wind up disappointed, a lamentable circumstance familiar to both exercisers and scientists. Multiple studies, many of them covered in this column, have found that without major changes to diet, exercise typically results in only modest weight loss at best (although it generally makes people much healthier). Quite a few exercisers lose no weight. Some gain.
But there is encouraging news about physical activity and weight loss in anew study by researchers at the University of Copenhagen. It found that exercise does seem to contribute to waist-tightening, provided that the amount of exercise is neither too little nor, more strikingly, too much.

In ‘Obesity Paradox,’ Thinner May Mean Sicker

In research conducted to answer that question, Dr. Carnethon discovered something even more puzzling: Diabetes patients of normal weight are twice as likely to die as those who are overweight or obese. That finding makes diabetes the latest example of a medical phenomenon that mystifies scientists. They call it the obesity paradox.
Link

Sunday, September 16, 2012

Monkey, New To Science, Found In Central Africa


It would seem difficult to overlook something as large as a new species of monkey, but scientists had no idea about the lesula until just a few years ago when conservation biologist John Hart discovered a specimen being kept as a pet in the Democratic Republic of Congo.

Low And Slow May Be The Way To Go When It Comes To Dieting


If you're dieting, you know you've got to count calories, carbs and fats. But if you really want to take off the weight and keep it off, you might want to pay more attention to the glycemic index, which is essentially a measure of how quickly foods are digested.
That's because high glycemic foods cause a surge in blood sugar, followed by a crash. That biological reaction releases hormones that stimulate hunger and, according to David Ludwig of theNew Balance Foundation Obesity Prevention Center at Boston Children's Hospital, actually lower metabolism, adding up to a dismal recipe for people who want to lose weight and keep it off
Link
(..)

But Ludwig and colleagues recently published a study in theJournal of the American Medical Association that offers some tools you might use to fight back. Researchers compared the low-carb, low-fat and low-glycemic diets to see which one burned the most calories per day. The low-carb diet was the clear winner. The low-fat diet was the loser. But it was the diet in the middle, the low-glycemic index diet, that Ludwig suggests is more promising. It burned more calories per day than the low-fat diet and proved easier to stick to over the long term than the low-carb diet.

Friday, September 14, 2012

Doctor, Hospital Deals Probed


California's attorney general has launched a broad investigation into whether growing consolidation among hospitals and doctor groups is pushing up the price of medical care, reflecting increasing scrutiny by antitrust regulators of medical-provider deals.
The office of the attorney general, Kamala D. Harris, has sent subpoenas, known as civil investigative demands, to several big hospital operators in the state, including San Francisco-based Dignity Health and San Diego's Scripps Health and Sharp HealthCare. Northern California's 24-hospital Sutter Health system has also received one, as has Santa Barbara-based Cottage Health System, according to people with knowledge of the matter. Subpoenas have also gone to major California health insurers, those people said.
The probe, which has been under way for several months, is examining hospital systems' reimbursement from the insurers, according to people with knowledge of the matter. The regulator appears to be focusing on whether the systems' tie-ups with physicians, as well as ownership of hospitals, have given them the market power to boost prices in a way that violates antitrust law, these people said.


Link

Wednesday, September 05, 2012

Elephants Dying in Epic Frenzy as Ivory Fuels Wars and Profits

Rare Infection Prompts Neti Pot Warning


Neti pots — those odd teapotlike vessels used to wash out the nasal passage — have won legions of fans who rely on them for relief from allergies,congestion andcolds.
But now, after two cases of a deadly brain infection were linked to neti pots, government health officials have issued new warnings about using them safely.

Monday, September 03, 2012

Big Calorie Cuts Don't Equal Longer Life, Study Suggests

Calorie restriction confers health benefits on monkeys but doesn't increase their life span, a new study suggests, undermining some people's belief that a sharply restricted diet could help them live longer.
Link

Sunday, September 02, 2012

Father’s Age Is Linked to Risk of Autism and Schizophrenia

Older men are more likely than young ones to father a child who develops autism or schizophrenia, because of random mutations that become more numerous with advancing paternal age, scientists reported on Wednesday, in the first study to quantify the effect as it builds each year. The age of mothers had no bearing on the risk for these disorders, the study found.
(..)
The overall risk to a man in his 40s or older is in the range of 2 percent, at most, and there are other contributing biological factors that are entirely unknown.
(..)
The research team found that the average child born to a 20-year-old father had 25 random mutations that could be traced to paternal genetic material. The number increased steadily by two mutations a year, reaching 65 mutations for offspring of 40-year-old men.
The average number of mutations coming from the mother’s side was 15, no matter her age, the study found.
(..)


Dr. Stefansson said it made sense that de novo mutations would play a significant role in brain disorders. At least 50 percent of active genes play a role in neural development, so that random glitches are more likely to affect the brain than other organs, which have less exposure.
In the end, these kinds of mutations may account for 20 to 30 percent of cases of autism, and perhaps schizophrenia, some experts said. The remainder is probably a result of inherited genetic predisposition and environmental factors that are the subjects of numerous studies.
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