Aug 1, 2014 — Studies show the caffeine in just a few cups of coffee enhances performance in a wide range of sports. But more isn't better, and concentrated caffeine can be lethal.
Jul 31, 2014 — Analysts say the merger of Reynolds American and Lorillard is driven by the changing demographics of smoking. But the lower smoking rate masks a more complex and varied pattern of cigarette usage.
Jul 31, 2014 — Mummies from Ancient Egypt, Peru and the U.S. all show signs of hardened arteries. But why? Researchers say bad hygiene, open hearths and maybe some deeply ingrained genetic factors were to blame.
Jul 30, 2014 — One study suggests middle-aged adults with a history of problem drinking may be twice as likely to develop serious memory issues as the years wear on.
Jul 30, 2014 — Adding a translation to the English label would require bigger bottles, pharmacists say. They worry patients would wind up carrying a few pills around loose — without any instructions at all.
Jul 29, 2014 — We spend $15 billion a year training doctors but end up with a medical workforce that doesn't meet the nation's health care needs, according to an Institute of Medicine Report.
Jul 29, 2014 — Medicare is trying a different approach in one experiment: Some hospice patients will still be able to get treatments aimed at prolonging life.
Jul 29, 2014 — It's hard not to worry about heart problems when running hard in hot weather. But heatstroke is a far bigger health risk, researchers say. Marathon organizers are trying to make races safer.
Jul 28, 2014 — The string of genes that make a man a man used to be much bigger, and some geneticists say it may be wasting away. Back off, others say. Y has been stable — and crucial — for millennia.
Jul 28, 2014 — Do you feel like you wander aimlessly through life, or is there a reason you're here? Psychologists say people with a sense of purpose may stress out less. Or they may lead healthier lives.