PSY 4327 Lecture 5: Sleep & Health
8 Feb 2017
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P s y 4 1 0 5 : l e c t u r e 5. S l e e p & h e a l t h. M o n d a y , f e b r u a r y 6 , 2 0 1 7. Increase in sleepiness: n3 and delta waves increase. Rem decreases during infection (e. g. , fevers) temperature increases. Recall that for rem sleep our temperature needs to be low. Timing of sleep via circadian rhythm not affected. Increased sleep helps recovery and helps prevent contagion (spreading to others) Sleep deprivation lowers immune response even one night of it. Hiv+ who develop aids have daytime sleepiness, night insomnia, less n3 (sws) In final stages lethargy, daytime sleepiness, no rem/nrem cycle, n3 almost gone. Acute and chronic stress can both affect sleep structure: During nrem sleep, growth hormone (gh) is secreted and other hormones from the hypothalamo-pituitary-adrenal (hpa) system (e. g. , cortisol) are suppressed.
