Life Stages and Sleep Patterns

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  • Life Span Changes
    • Infancy
      • 50-60% REM
      • 17 hrs
        • 60 min cycles
        • Non continuous
          • 3-4 hrs up to 6 hrs at 6 mths
    • Adolescence
      • 30% REM
      • 8-10 hrs
      • Phase delay
      • Orgasm
      • Reduction in sleep in all cultures
    • Old Age
      • 10% REM
      • 0-5% SWS
      • Phase advance
      • 8 hrs
      • Harder to sleep/wake up a lot
    • Armitage
      • 11/18 depressed mothers
      • Depressed mum = different sleep/longer to sleep
        • Maternal hormones or genetics
    • Baird
      • GHQ
      • Pre-conceptual psych distress
      • Self report
        • Social desirability
        • Determinism
      • 23& increase risk of waking (12-6)
    • Carskadon
      • 3000 US high school
        • Av. sleep was 7.3 hrs
        • Untitled

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