PSY 124 Midterm: Chapter 5 lecture

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Circadian rhythms: 24 hour cycle of changes in hormones, brain ways, body temperature, and droziness, blood pressure (bp, rises during the day, at its peak at later of the day, at 3 4 in the morning, its at its lowest, most deaths will occur at 3 4 in the morning because bp is at its lowest during this time, body temperature, low body temperature at night, at night our body temperature drops, rises during the day, the more activity you do the warmer the temp is, 3 4 morning(cid:224) lowest, cortisol hormone, anti sleep hormone, put it out during the day time to keep you awake, substance that tries to wake you up, slides off as the day goes on, melatonin, opposite, high at night time, almost goes away during the day, as you shut your eyes at night, it starts to activate, you need darkness to have it to come to you, tryptophan, in potatoes, triggers melatonin.

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