The very first person to help Tyler Blankenship was his own fiancé, who firefighters say gave the 30-year-old hands-only CPR until they could get there.

Bronny James, the eldest son of Los Angeles Lakers star LeBron James, suffered a cardiac arrest but is in stable condition.

Who We Play For seeks to prevent cardiac deaths

Buffalo Bills safety Damar Hamlin suffered a cardiac arrest after making a tackle during Monday night’s game, causing the NFL to suspend a pivotal game against the Cincinnati Bengals that quickly lost significance in the aftermath of a scary scene that unfolded in front of a national television audience.

Buffalo defensive back Damar Hamlin was in critical condition early Tuesday after the Bills say his heart stopped following a tackle during the Monday Night Football game, which was indefinitely postponed.

Sudden cardiac arrest and heart attacks may sound like the same thing, but they are different conditions. If you imagine your body as a house, cardiac arrest is like an electrical problem, while heart attack is like a blockage in the plumbing.