1.Why do you think animals, including humans, would evolve a system in which their testosterone levels would fluctuate with winning and losing in competitive situations?
2. How do shift work, jet lag, and daylight saving time affect our normal circadian rhythms?
3. What is the basis for the rhythmicity observed in the SCN?
4.What can we learn from the EEG recordings taken from different stages of waking and sleep?
5. In what ways should sleep be considered an active, as opposed to a passive, process?
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