15 Ways to Build Muscle Fast

Upgrade your workout—and transform your body—with these new fitness tips from the country's most innovative trainers.

By Lou Schuler

Day-by-Day Workout Plan to Help You Slim Down

Start this weekend and you could be 5 pounds slimmer by Friday.

By Michele Stanten

An Inside Look at an ACL Tear Recovery

An ACL tear is bad news, but most people completely heal after surgery. Learn the step-by-step process of recovering from an ACL injury with this ...

By Ryan Wood

5 Ways to Perfect Your Plank

Engage your abs in one of the best workouts. Here's how to get your plank form in top shape.

By Liz Miersch

Tone Up in 20 Minutes or Less

Want to tone up? Here's how to stay slim and fit all year long.

By SELF Editors

The Benefits of Bootcamp

Looking for a workout that leaves you breathless, but with toned abs and chiseled legs? You should sign up for a bootcamp and reap all the benefits.

By Alana Brager

Combo Workout: Core Work and Bike Intervals

Try this workout when you need a quick but intense session at the gym or at home on your indoor trainer.

By Jen? Shaw

Beyond Yoga: 3 Steps to Discover Spontaneous Movement

Do you store excess energy in your muscles? Find out how to release it and reach ultimate relaxation and recovery.

By Paul Tyler