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

Researchers think the way to a healthy heart might be through your gums and teeth. ...more

November 29, 2008

People with low cholesterol and no big risk for heart disease had dramatically lower rates of heart attacks, death and stroke if they took the cholesterol pill Crestor, a large study found. ...more

November 10, 2008

People with low cholesterol and no big risk for heart disease dramatically lowered their chances of dying or having a heart attack if they took the cholesterol pill Crestor, a large study found. ...more

November 9, 2008

Deborah Anderson had heard the urban legends about the contraceptive effectiveness of Coca-Cola products for years. So she and her colleagues decided to put the soft drink to the test. In the lab, that is. ...more

October 3, 2008

Stroke sufferers can benefit from clot-busting medicine even if they receive it an hour or so beyond the current three-hour window after symptoms start, an important new study suggests. ...more

September 25, 2008

A long-awaited federal study of an X-ray alternative to the dreaded colonoscopy confirms its effectiveness at spotting most cancers, although it was far from perfect. ...more

September 18, 2008

Just about every segment of the medical community is piling on the pharmaceutical industry these days, accusing drugmakers of deceiving the public, manipulating doctors and putting profits before patients. ...more

September 11, 2008

Two studies call into question whether many people with arthritis are needlessly undergoing one of the most common operations in America: arthroscopic knee surgery. ...more

September 11, 2008