What is commotio cordis, which NFL player Damar Hamlin says

Buffalo Bills safety Damar Hamlin says commotio cordis caused his "Monday Night Football" collapse. Here's an explanation of the rare, heart-stopping condition.

Commotio Cordis: The Rare Heart Phenomenon Thought to Have Caused Damar Hamlin's Collapse - WSJ

EXPLAINER: What happened to Buffalo Bills safety Damar Hamlin?

What is commotio cordis, which NFL player Damar Hamlin says

Workplace News American Heart Association

Michael Merschel

Bills' Damar Hamlin may have suffered heart arrhythmia, experts say - The Washington Post

NFL Cancels Bills Game After Damar Hamlin Suffers Cardiac Arrest

MEDIA ALERT: (WATCH) Damar Hamlin shares more with the American

A fastball to the chest sent college baseball player into cardiac