Low-fat, low-carb or high-protein? The kind of diet doesn't matter, scientists say. All that really counts is cutting calories and sticking with it, according to a federal study that followed people for two years. ...more

February 25, 2009

Cleaner air over the past two decades has added nearly five months to average life expectancy in the United States, according to a federally funded study. ...more

January 21, 2009

An expensive vaccine aimed at preventing cervical cancer makes sense for young teens when it comes to cost-effectiveness, but not for women in their 20s, contends a new report. ...more

August 21, 2008

A new analysis of government data is the first to link low-level arsenic exposure, possibly from drinking water, with Type 2 diabetes, researchers say. ...more

August 19, 2008

Tobacco companies deliberately changed the menthol levels in cigarettes depending upon whom they were marketing them to - lower levels for young smokers who preferred the milder brands and higher levels to "lock in lifelong adult smokers," researchers at the Harvard School of Public Health concluded. ...more

July 17, 2008

Americans often buy guns for self-defense, a purpose that now has Supreme Court validation. But according to advocates of gun control, those purchasers overlook the people who pose the greatest threat: themselves. Anyone who acquires a firearm, we are told, is inviting a bloody death by suicide. ...more

July 13, 2008

More than half of U.S. adults with diabetes also have arthritis, raising a serious obstacle for diabetic patients urged to exercise, according to a government study. ...more

May 9, 2008

Maria didn't mean to poison her children. Quite the opposite. Worried about her daughters' lack of appetite, the young Houston mother was merely following her grandmother's advice when she gave the two girls and a niece a dose of "greta" - a Mexican folk medicine used to treat children's stomach ailments. ...more

January 26, 2008

Where a teenage girl sees herself on her school's social ladder may sway her future weight, a study of more than 4,000 girls finds. ...more

January 8, 2008