"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." POP QUIZ: HOW many reps and sets should you do per exercise to build muscle? If you’re in the know, ...

A trainer shares how many days a week to work out after 40 to maintain muscle, support metabolism, and stay strong.

Leading an active lifestyle has major physical and mental benefits, as raising your heart rate and exercising your body on a regular basis can reduce the risk of many kinds of diseases and health ...

In this article I summarize the benefits of exercise and offer specific tips on how to exercise for each benefit.

Do you ever walk into the gym and look around at all the weights and machines and think "how am I possibly going to put together a workout?" Programming workouts is literally my job and I still have ...

Find out how many squats you should do in 60 seconds after 50 to test elite leg strength, balance, and everyday power.

Some people spend hours at the gym several times a week, while others barely have the time and energy to fit in one session. But both types of gym-goers can be equally frustrated by not seeing results ...

Find out how many pushups you should do to be stronger than most your age, plus science-backed rep ranges linked to heart ...