what if equity is more about knowing a person enough to know and help them regulate their preference for stimulation. - work of eysenck, 1960ish
ongoing..
perpetually changing
over-arousal: doesn't produce anxiety so much as the sense that you can't think straight - that you've had enough and would like to go home now.
under-arousal: is something like cabin fever. not enough is happening, you feel itchy, restless, and sluggish, like you need to get out of the house already
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