Tighten your lower belly with 1o trainer-approved moves—sets, reps, and guidance to burn fat and firm your core.

Build muscle and improve posture with 4 standing moves that make your belly look tighter in 30 days—no surgery needed.

Add these to your core routine immediately. Getting visible abs is a goal for many men, and fitness companies cash in—pushing everything from fat-burning supplements to ab machines that promise a rock ...

A lot of people wish for flat abdominal muscles. But what about achieving flat abs without having to work much at it? You may have heard that merely tightening your ab muscles while standing, sitting ...

Denise Austin just shared a core exercise on Instagram. The 67-year-old demonstrated a “great exercise that you can do standing up” to “tone and tighten” the abs. The standing crunch variation is ...

Denise Austin just shared a core exercise on Instagram. The 67-year-old demonstrated a “great exercise that you can do standing up” to “tone and tighten” the abs. The standing crunch variation is ...