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If you want to strengthen your core, doing hundreds of crunches won't help. In fact, you should stop doing crunches because they aren't good for your back. If you want a strong core, you've got to ...

A strong core is the foundation for nearly everything you do—walking, running, lifting, or even standing tall throughout the day. While gym machines and weights get plenty of credit, your own body can ...

Add Yahoo as a preferred source to see more of our stories on Google. Throughout the day, knees support your body weight and deal with different types of pressure, tension and stress. Doing the same ...

7-minute morning routine to flatten belly after 55, from a certified personal trainer, plus step-by-step form for each move.

Wall sits strengthen your quadriceps, knee caps, and quadricep tendons. Doing hamstring curls boosts knee strength and lowers stress and injury risk. Clam shells target your gluteus medius and minimus ...

Morning exercises for waist bulge after 45: a CSCS shares 4 moves and a set-rep plan to feel tighter fast.

This uncomfortable condition is increasingly common as you age. But it doesn’t mean you can’t work out. By Jen Murphy Jen Murphy was diagnosed with advanced knee osteoarthritis three years ago at 42.