What If Your Heart Stopped for 60 Seconds?

What happens when your heart stops for one minute? Bodie volunteers to find out, second by second: when you pass out, why the brain goes quiet, the gasping that fools almost everyone, and the one thing that buys time when a heart stops — CPR. Your brain is about 2% of your body weight but takes around 20% of the oxygen-rich blood your heart pumps, and it can't store any. So when the heartbeat stops, the countdown starts. Follow Bodie through the first 60 seconds of cardiac arrest, then see what happens if the heart doesn't come back. ⏱ Chapters 0:00 Bodie's heart is about to stop 0:15 Why your brain needs every heartbeat 0:47 Second zero 1:06 Seconds 5–30: lights out 1:31 The gasp that fools everyone 2:04 The brain goes quiet 2:18 Seconds 30–60: emergency mode 2:41 Second 60 3:04 What if it doesn't come back? 3:26 How CPR buys time 3:58 The verdict 4:20 Next experiment ❤️ If someone collapses and isn't breathing normally, call emergency services and start hands-only CPR. A short CPR class can teach you in under an hour. ⚠️ Poor Bodie is a cartoon thought experiment for entertainment and education. It is not medical advice. New experiments every Monday, Wednesday and Friday. Subscribe so Bodie isn't alone in the lab. #WhatIf #HumanBody #CPR