Coffee, caffeinated or decaffeinated, may help extend the lives of people who drink it daily, a U.S. study found.

NEW YORK (AP) - It's dramatic news when a marathon runner collapses with no pulse. Now a big study finds such calamities are rare and usually due to a pre-existing heart problem.

BOSTON (AP) -- Worried about the increasing number of partial-liver transplants from living donors, some doctors are proposing an external regulator be appointed to certify hospital units to do the surgery.

People gain much less weight than commonly believed during the holiday season that stretches from Thanksgiving's pies to New Years' excesses, according to a federal study published Thursday of 195 adults.

Running counter to previous findings and prevailing wisdom, two major studies have found that a high-fiber diet doesn't appear to prevent the return of polyps that can lead to colon cancer.

An alarming and highly influential 1999 report which concluded that as many as 98,000 Americans die every year from preventable medical errors is itself being criticized as erroneous by some experts.

A combination of healthy diet, moderate physical exercise, no smoking and limited alcohol consumption can lower women's risk of heart disease by as much as 83 percent and stroke by 75 percent, a study published Thursday reports. .

Exercise is good for your organs, even if the organs originally were someone else's.

At least two people have died from a chemical cousin of GHB and six others have overdosed in the decade since the government banned the sale of the "date-rape drug," a study found.

A new drug to fight bacterial infections in the bloodstream could save 50,000 lives per year in the United States, researchers said Friday.