- Scientists have found that the effects of acute sleep deprivation, or all-nighters, kicks in after being awake for 16-18 hours straight.
- The first sign is a sluggish mind, with reaction times lagging to the equivalent of being legally drunk by the 24th hour awake.
- After 24 hours, your brain starts forcing you into 10-20 second periods of “micro-sleep”.
- After 35 hours, the brain’s emotion-emitting amygdala becomes 60% more reactive and the ability to regulate emotions declines.
- Hallucinations are common after 48 hours awake.
What Happens to Your Body on No Sleep?