What Happens If You Don’t Sleep for 72 Hours
[0 HOURS – WAKING UP AFTER YOUR LAST SLEEP]
You wake up feeling normal. Your body is rested. Your brain is sharp. Reaction time, memory, focus — all working perfectly.
But this is the last time your body will feel balanced for a while.
[12 HOURS WITHOUT SLEEP]
You’ve been awake half a day longer than usual.
Your brain starts to slow slightly.
You feel more tired, less focused.
Your reaction time drops — similar to having a small amount of alcohol in