Environment and family history are factors in healthy aging, but genetic “variants” play an important role in living to be very old.

Regular coffee drinkers appear to need caffeine to return to their normal state of alertness, say researchers.

People facing surgery may imagine a skillful surgeon using a scalpel with a steady hand, but the real picture is changing.

Sports training often heats up in the summer, just as temperatures begin to soar. Beginners and pros alike can stay safe with these tips for getting the most from summertime workouts.

In a recent survey, people who reported mental health problems often also had asthma. Can one condition actually cause the other? Researchers are just beginning to sort out these mind-body connections.