PSYC-275 Lecture Notes - Lecture 10: Night Hours, Circadian Rhythm, Sleep Deprivation

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Sleep and age: infancy - lots of sws, rem, and total sleep time. From age 1 to the mid 20s, approximately 25% of peoples total sleep is spent in sws. In addition, rem decreases from approx 35% to 25% of total sleep time, and total sleep time drops by approximately half: after mid 20s - daily sleep pattern becomes stable from now to approximately age 60, except for. Sws drops from approximately 13% in mid 30s to approximately 5% by age 60. As you can see, the younger a person is, the more sleep they require. So the next time your parents complain about you sleeping a lot, you can tell them that it has been scientiically documented that younger people require lots of sleep. The early theories focused on what produced sleep not what sleep does (the purpose of sleep).

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