November 22, 2011 A couple of hours after eating, participants in a Harvard study who consumed canned soup had BPA levels in their urine that were about 12 times higher than the people who didn't. But the health implications of this sort of exposure to the chemical, which can act like the hormone estrogen, are still murky.
September 21, 2011 The links between red wine and longevity aren't nearly as strong as they once seemed, according to new research in the journal Nature. In fact, the research calls into question the whole mechanism used to explain wine's power to extend life.
September 13, 2011 Scientists found that single men who started out with relatively high testosterone levels were more likely than other men to become fathers. But once a baby arrived, testosterone levels plummeted.
September 1, 2011 A part of the brain called the amygdala has cells specialized to detect animals, researchers have found. One reason we have these cells may be that some animals posed a threat to our ancestors. But researchers also found cells that respond specifically to cute animals like puppies or bunnies.
August 26, 2011 Retailers such as Walmart and Home Depot have turned hurricane preparation into a science — one that government emergency agencies have begun to embrace. They've deployed hundreds of trucks carrying everything from plywood to Pop-Tarts to stores in the storm's path.
August 24, 2011 An analysis of civil conflicts between 1950 and 2004 found that in tropical countries, conflicts were twice as likely to occur in El Nino years. Researchers say the abnormally warm, dry weather could put a strain on the water and farming resources, which could lead to battles.
August 3, 2011 Specially equipped NASA planes are flying over U.S. cities, gathering data on how pollutants form, travel and disperse in the atmosphere. The goal: to figure out how to use satellites to provide detailed, hourly updates on pollution levels across the country.
July 27, 2011 Deep brain stimulation involves placing electrodes far into brain tissue. It's best known as a way to alleviate Parkinson's tremors. Now doctors are using it to reduce symptoms of obsessive-compulsive disorder. "My mind was free of this stuff that had been in there for years," said one patient who received the treatment.
July 27, 2011 The experimental device uses small patches placed on the surface of the skin, above the eyebrows, to electrically stimulate a nerve that leads into the brain. The approach appears to control epileptic seizures without the fatigue or problems with mood and thinking associated with some anti-seizure drugs.