TIL that a heart attack, heart failure and cardiac arrest are 3 separate conditions

https://edition.cnn.com/2023/01/03/health/cardiac-arrest-heart-attack-heart-failure-explainer-wellness/index.html

https://www.reddit.com/r/todayilearned/comments/15ni0hr/til_that_a_heart_attack_heart_failure_and_cardiac/