Building muscle has huge health benefits, but working out takes time. So what's the least amount of time you can spend at the gym and still see the benefits? Research shows it's less than you'd think.

There is validity to the claim that exercising at night can affect sleep. When you work out, you activate the sympathetic ...

It's been thought that exercising at night makes it harder to fall asleep. Sleep experts weigh in on what the latest research says about if workouts keep you up.

In today’s fast-paced world, finding time to exercise often feels like a challenge in itself. Between work commitments, ...

If you're one of those who have decided to start moving but don't know where to begin, let me tell you, you're not alone. The gym, the routines, the fitness jargon... it can all seem like a maze at ...

Editor’s note: The views expressed in this commentary are solely those of the writers. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news ...

Staying active is important, whether it’s taking a walk, going to the gym or running some miles. Trying to stay motivated and get through it can be a difficult task, but using some of the best ...

Reorganizing your week just might make it possible to reorient your relationship with time. By Melissa Kirsch I generally work three days in the office, two days from home. Recently, I was working on ...