A rare but potentially lethal heart disruption known as commotio cordis may have sent Buffalo Bills defensive back Damar Hamlin into cardiac arrest seconds after a hard tackle during a game Monday ...

Damar Hamlin's shocking midgame collapse has people hoping for the best and looking for answers. The Buffalo Bills said in a tweet early Tuesday morning that the 24-year-old, who is in critical ...

Optimal windows exist for action and perception during the 0.8 seconds of a heartbeat, according to new research. The sequence of contraction and relaxation is linked to changes in the motor system ...