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Competing bacteria in gut maintain health - study

<b>Competition between different bacteria species in the gut is what keeps humans healthy, a study has suggested.</b><p>The research, published in the journal Science, uses mathematical theory to suggest how microbes in the gut maintain stability.<p>Scientists previously thought bacteria were cooperating, but …

Microbiology

Getting your blood pressure even lower: Here are the risks and rewards

Two months ago, U.S. officials crowed that a federally funded study gauging the impact of stricter blood pressure control had produced such dramatic results, they were bringing the clinical trial to an early close.<p>On Monday, those dramatic results got medicine's version of a ticker-tape parade: a …

Medicine

The Plastic Used In 3D Printers Is Toxic To Some Fish

And possibly to humans<p>Toxins from 3D printed plastic discs disrupted the development of zebrafish embryos, according to a study published last week in the journal <i>Environmental Science and Technology Letters</i>.<p>A year ago, researchers at the University of California Riverside bought a 3D printer to …

Pollution

Is MSG as bad as it’s made out to be?

Monosodium glutamate is blamed for a range of nasty side effects. But is there evidence to back up these claims?<p>It used to be called ‘Chinese Restaurant Syndrome’: a collection of symptoms such as headache, nausea and a strange numbness that certain people seem to suffer after a meal of Chinese …

FDA

Mechanics Of Eating: Why You'll Miss Flavor If You Scarf Your Food

When it comes to enjoying the flavors in food, our tongues really aren't that useful. They can detect just a few basic tastes: sweet, salt, sour, bitter, umami, and maybe fat.<p>But real complexity comes from a food or drink's aroma, and the main way we sense all the compounds isn't from sniffing. Our …

Dental Care

Study: Even the normal-weight should watch that apple shape

WASHINGTON (AP) — A pot belly can be a bad thing — even if you're not considered overweight.<p>New research suggests normal-weight people who carry …

Diabetes

Sixty Years of Data Show Waves are Getting Stronger, Threatening Coastlines and Infrastructure

Changing Planet<p>An aerial view of Colun Beach in the Valdivian Coastal Reserve, Los Rios, Chile. Photo © Nick Hall<p><i>By The Nature Conservancy’s Dr. Borja G. Reguero and Dr. Michael W. Beck</i><p>Climate change is modifying the way our oceans work in many different ways, including ocean acidification and …

Climate Change

'Global bleaching event' threatens corals around the world

A quarter of the world’s marine species depend on coral reefs for habitat. A half-billion people rely on them for their livelihoods or sustenance.<p>Researchers say we’re now in the midst of the third global coral bleaching event in less than 20 years. And that by the time it’s all played out, the …

The complex nature of GMOs calls for a new conversation

The GMO debate is one from which I’ve kept a purposeful distance.<p>For one thing, it’s an issue that has already garnered more than its fair share of attention. For another, when you consider that many domesticated crops resulted from seed irradiation, chromosome doubling and plant tissue culture — …

El Niño Is Going to Starve a Lot of Fish

When Joe Orsi goes trawling, he doesn't go trawling for 900-pound ocean sunfish. Orsi's title is biologist, his employer the NOAA Alaska Fisheries …

The tantalizing links between gut microbes and the brain

Neuroscientists are probing the idea that intestinal microbiota might influence brain development and behaviour.<p>Nearly a year has passed since …

Consider all the evidence on alternative therapies

Investigate and incorporate the mechanisms of complementary medicine instead of rejecting it outright, says Jo Marchant.<p>“Insane”, “a joke”, and …

Nope, the flu vaccine won't give you the flu - Futurity

Don't believe the myth. "You absolutely cannot get the flu from the standard vaccine shot," says expert John Quarles.

Flu Vaccine

Health effects of carbs: Where do we stand?

<b>(CNN) —</b> Bread glorious bread! It was once considered a status symbol, and has been a nutritious dietary staple for all classes for millennia.<p>But starting in the second half of the 1990s, bread became bad. So did the whole menu of starchy carbohydrates, such as pasta and potatoes, as well as sugary …

Nutrition

How One of America's Most Overweight Cities Lost a Million Pounds

The mayor of Oklahoma City declared war on obesity, launching health campaigns and implementing pedestrian-friendly new infrastructure. Is this one possible solution to the nationwide epidemic?<p>When Velveth Monterroso arrived in the U.S. from her hometown in Guatemala, she weighed exactly 140 …

Goodbye, oceans! Study finds ecosystems headed toward a major collapse

Hungry for some mahi mahi? Too bad! According to new study from the journal <i>Proceedings of the National Academy of Sciences</i>, seafood may soon be a …

The Biggest Concerns About GMO Food Aren't Really About GMOs

Everyone from Chipotle to the Food Babe rails against genetically modified ingredients, and laws to label GMO foods are making progress in some …

Agriculture

Ice cores show 200-year climate lag

<b>Scientists have found a 200-year lag time between past climate events at the poles.</b><p>The most detailed Antarctic ice core provides the first clear comparison with Greenland records, revealing a link between northern and southern hemisphere climate change.<p>Scientists found that abrupt and large …

Global Warming

Can This Scientist Unite Genetic Engineers and Organic Farmers?

DAVIS, California<p>Pamela Ronald isolates genes in rice that feeds millions. Her integrative approach to agriculture could be an even bigger game-changer.<p>Eighteen scientists are sitting in a lab, talking about new ways to feed the planet. These are some of the world’s foremost experts on rice. Most …

Gravity Data Confirms: Antarctica Is Melting Faster Than Ever Before

A massive melting problem<p>Study after study shows that Antarctica isn't in great shape. Its ice shelves are disappearing and its ice sheets are collapsing, hastening swiftly rising sea levels. Sounds terrible.<p>But just in case you wanted a second opinion, a new study out of Princeton University takes …

Could electric biorocks save coral reefs?

In Indonesia, ecologists have created ‘biological rocks’ on the ocean floor using an ingeniously simple technology. Katie Silver investigates.<p>Just metres off the beach, beneath the clear water, is a giant motorbike, sitting atop a big steel structure in the shape of a speedbump. It is covered in …

Seafloor

Natural GMO? Sweet Potato Genetically Modified 8,000 Years Ago

The first genetically modified crop wasn't made by a megacorporation. Or a college scientist trying to design a more durable tomato. Nope. Nature did it — at least 8,000 years ago.<p>Well, actually bacteria in the soil were the engineers. And the microbe's handiwork is present in sweet potatoes all …

Agriculture

How 'Healthy Diets' Have Changed Over The Decade

If you’re confused about all the conflicting dietary and nutritional advice out there, you’re not alone. Every week, it seems as if researchers are learning something new about the foods that will help us stay mentally sharp, slender and disease-free — as well as those foods that will make us …

Are Food Additives Evil? We Have an Almost-Civil Debate

If you eat food or like science, you may be aware of the current dispute between Food Babe and Science Babe. Food Babe, essentially, never met a …

A little conservation goes a long way in Australia's Great Barrier Reef

Experts have reported some good news about their long-running efforts to protect fish in Australia's Great Barrier Reef: A ban on fishing in one large portion of the reef has helped fish throughout the habitat.<p>The protections also appear to have aided the area's recovery after Tropical Cyclone …

Great Barrier Reef

Purity Through Food: How Religious Ideas Sell Diets

Eating based on what is "natural" offers little but sanctimony.<p>Foods are either natural or unnatural. They are good or bad. Bad foods harm you, and good foods cleanse you. Bad foods are sinfully delicious, or guilty pleasures. Good foods are whole, real, clean, and natural. Bad foods are fake, …

Tea Tuesdays: Tea-Drinking Tips For A Longer Life

As we reported earlier this month, a fascinating project called Blue Zones is documenting and disseminating the lifestyle secrets of the communities with the highest concentrations of centenarians in the world.<p>The people in these five regions in Europe, Latin America, Asia and the U.S. that live to …

Tea