Diaphragm flutter — also known as diaphragmatic flutter or diaphragmatic myoclonus — is a rare disorder in which your diaphragm experiences repeated involuntary contractions. The diaphragm is a muscle ...

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

Flatten a stubborn belly pooch after 50 with six joint-friendly chair exercises—sets, reps, and a 30-day plan inside.