fitness

If you're procrastinating working out, here's one less excuse. Short gym sessions can be enough to build meaningful strength — as long as you push yourself while you're there.

Over the course of a week, we'll send you the essentials of gaining muscle and strength, based on the latest research and interviews with some of the leading experts in the world.

It's a growing fitness trend. People say wearing a weighted vest when you exercise builds bones, strengthens muscles and improves cardiovascular health. But does research back up these claims?

Most of us have heard you need 10,000 steps a day to stave off health problems, but new research is finding that number is not necessary -- though more is always better.

If you're in the camp of folks who are dragging their feet to start working out again, this comic is for you.

With his short shorts, sparkly tank tops, frizzy hair and flamboyant personality, Simmons created a fitness empire. He preached positivity, portion control, moving your body — and having fun.

More lower-alcohol, lower-calorie beers are being marketed as part of an active lifestyle, and are even being offered after long runs or sporting events. But scientists say to be wary.

Never mind a runner's high — the buzz some people say they get after a run. Neuroscientist Benedict Kolber was more interested in how to generate pain relief via a brisk walk. It can really work.

Does exercise recovery work? Science writer Christie Aschwanden examines the physiology and effectiveness of sports drinks, protein powders and other products and services in her new book, Good to Go.

The U.S. Health and Human Services Department has released a new set of exercise guidelines. It reflects the agency’s new way of thinking about exercise.