Here are nine great exercises for toning your midsection. Remember, the ol' Pilates trick of pulling the belly button in ensures that you're working the deepest ab muscle (known as the transverse), ...

We can always count on running to deliver a mental-health lift — nothing beats that "runner's high" endorphin rush. The heart-pumping cardio workout is also great for your heart and lung health, and ...

The best core workouts will work the center of your body from all angles. You want to hit those six-pack muscles in the front but also the deep transverse abs below them, your obliques on the sides, ...

Think beyond crunches for toning your abs and try this bodyweight workout from our No-Excuses Workout Challenge. These full-body moves will work your abs from multiple angles and tone your middle.

Feeling and looking your best is always in season, and your having a strong core helps with both. Move through this effective circuit two to three times for a complete workout, and help tone your ...

It may not be a secret that the best way to a six-pack is a healthy diet (even if it's no diet at all) and regular exercise, but there's a right way and a wrong way to get a flat belly. Read on for ...

You can do as many crunches as you want, but if you don't incorporate key lifestyle changes, seeing lower abs — and abs in general — will be more difficult. "To achieve truly defined lower abs, one ...

You can tone your abs and arms without weights. So jump on the bodyweight-workout train with this quick fitness sesh devoted to strengthening your core and carving sculpted shoulders. It's part of our ...

Give us 10 minutes and we will have you feeling your abs! Working your abs from a variety of angles with these 10 different exercises translates to a strong and tight core. And with no equipment ...

This challenge starts with a full-body strength-training workout that will keep you moving for about 40 minutes. Best of all, you don't need any equipment for this workout, so no excuses! Learn the ...

If you've had a baby, you're more than likely familiar with all the changes your body goes through, like morning sickness, heartburn, an aversion to all scents and foods, sciatica, expanding hips — ...