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 ...

Atrial flutter is a type of irregular heartbeat, or an arrhythmia. It causes your heart to beat too fast. Atrial flutter doesn't always have symptoms, but it can sometimes have serious consequences if ...

It only takes a few seconds of flutter kicks to set your abs—especially the hard-to-target lower abdominal wall—on fire. But the benefits of flutter kicks go beyond the core, explains Kara Miklaus, ...