The post is mostly covering "mind" and "metabolic" things, but the effect extends to "body" things: - more likely to avoid hurtful situations (lower attention,

The post is mostly covering "mind" and "metabolic" things, but the effect extends to "body" things: - more likely to avoid hurtful situations (lower attention, zone out events, micro sleep events, reflexes diminished). - more likely to hurt yourself when such accidents occur - once hurt, physical recovery is severely hampered Car accidents are the obvious ones here but it extends to simple things like accidental cuts with knives, slipping in the tub, or sprained ankles or knees just walking down stairs or curbs. And some other "mind" and "metabolic" things: - immune system effectiveness plummets, so more chances to get sick - REM deprivation causes neuronal death - long term, leads to anxiety, false memories, paranoia, hallucinations, and psychosis (been there, done that; not a good place to be) We all know that water is essential to not dying, but sleep appears to be on equal footing (3 days without either and you're in catastrophic states), maybe even more important (the - sad - record of a human surviving without water is 18 days, for sleep it's 10)