What Happens to Your Body on No Sleep

Outside (04/02/2019)
  • 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.