ANSWERS: 4
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I once heard that this is left over from when humans were covered with hair, it's like when a cat or dog raises it's fur to look bigger to scare away any potential threat.
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Fear, cold and excitement make small muscles (erector pilli) attached to body hair contract, thus making it "stand on end" and it also causes goose pimples
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it's a physiological reflex when temperature is cold, or a reflex of defense when you're scared (inheritance of our hairy ancestors)
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You mean when I hear about a child molester...a rapist...and abuser of any kind? I can tell you, for me, it's a combination of grief and ANGER! In fact, just at the thought, they're standing up right now!
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