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Questions:
Everybody gets goosebumps, when they are cold or scared, but what really is the cause of goosebumps and I want information on what causes them, and generally about them! I almost get them every morning, so I might as well know whats going on [:
Answer 1:
As a response to cold: in animals covered with fur or hair, the erect hairs trap air to create a layer of insulation. Goose bumps can also be a response to anger or fear: the erect hairs make the animal appear larger, in order to intimidate enemies. This can be observed in the intimidation displays of chimpanzees,[1] in stressed mice[2] and rats, and in frightened cats. In humans, it can even extend to piloerection as a reaction to hearing nails scratch on a chalkboard, listening to awe-inspiring music,[3] feeling or remembering strong and positive emotions (e.g., after winning a sports event),[4] or to an intellectual or spiritual epiphany.
Piloerection as a response to cold or emotion is vestigial in humans; as humans retain only very little body hair, the reflex (in humans) now provides no known benefit.
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