As part of the Women’s Health Flex Challenge, trainer Jenna de León takes you through this snappy circuit that includes four ...

Do this 7-minute standing routine each morning to tighten your core, boost metabolism, and shrink belly pooch in 30 days ...

I'm someone who finds standard ab workouts a little dry. Sit-up to crunch to plank, back to sit-ups, and so on. While these exercises are effective for engaging your core muscles, they’re far from ...

This workout is short — just 10 minutes — and requires no equipment. But it packs in a lot of work. PS Fit instructor Natalie White designed it to target your abs, core, and thighs, and she'll have ...