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๐ง Mental Health
Sleep & Health
Adults need 7โ9 hours; sleep deprivation causes cognitive impairment, obesity and heart disease
USA ๐ 1953 Mental Health
Key Facts
- 1
Sleep stages: NREM (3 stages) and REM; brain consolidates memory during deep sleep
- 2
Sleep deprivation 24h = legally drunk level of cognitive impairment; chronic lack linked to Alzheimer's
- 3
India: 93% of Indians are sleep deprived (Fitbit study 2022); blue light from phones suppresses melatonin
๐ Did you know? REM sleep was discovered by Nathaniel Kleitman and Eugene Aserinsky in 1953 โ the same year as DNA's double helix
Quick Reference
Category
Mental Health
Country
๐ USA
Year / Era
1953
About
Adults need 7โ9 hours