Resveratrol, found most famously in grapes and red wine, seems to ward off several age-related diseases. Researchers have now found a direct molecular target for the compound. The finding points the way to more potent and targeted drugs.

Men and women can seem like they're from different planets sometimes. Hormones help drive those differences. A new study shows how genes pass on the message.

Researchers have developed a way to direct the body's own stem cells to build new, strong bone tissue. The method, developed in mice, may lead to new treatments for osteoporosis and other bone diseases that affect millions of people.

A new study confirms that controlling traditional risk factors for cardiovascular disease, such as high blood pressure, substantially lowers the chance of major events like heart attack or stroke over the course of a lifetime.

Modern social networks, from small networks of friends and family to entire countries, are based on cooperation. A new study suggests that our early ancestors may have had social networks strikingly similar to those of modern societies.