8 Ways to Make Your Cardio Workout Harder (Not Longer)

Try these trainer tricks for more burn in less time.

FITNESS TIPSslide show
How Much Weight Should You Really Be Lifting at the Gym?

Going steady with the 10-pound weights for months now? You may be selling yourself short.

Back-to-Basics Moves That Tone All Over

Put a fresh spin on old school bodyweight moves.

10 Oblique Exercises for a Flat Stomach, Fast

Show off your good sides (that's right, both of them) with moves that whittle your middle.

6 Not-So-Obvious Reasons You’re Stuck in a Fitness Plateau

You've been hitting the gym religiously for weeks and aren't making any progress. What gives?

9 Fitness Classes You Can Take On Periscope—for Free

There are officially no excuses to skip the gym.

Burn Calories While You Sleep

Boost your metabolism in less time than it takes to get through your before-bed skincare routine.

Why You Should Sign Up for an Obstacle Course Race

Whether it’s a 5K or a mud run, tackling an obstacle course for the first time can feel so rewarding.

5 Treadmill Tricks to Help You Burn Double the Calories

And no, one of them isn't just running faster.