Is the behavior of the body is doing, where to contract the muscles in the skin, it becomes a coarse hair stands and is mostly happens when we feel cold or fear.
Start this series the existence of a catalyst such as a cold, which in turn stimulates the nervous system to send Sialat neurological cause constriction of certain muscles connected Bmnapt hair in the skin, contraction of these muscles raises reared hair on the level of the skin appears as a pill small skin in addition to pulling hair in the hairline, causing standing .
Why take advantage of the chills?
In cases of cold body needs to produce heat in addition to retain heat in it not to let it seep through the pores of the skin, when muscle contraction parked hair and that causes chills produces some heat as well that this contraction is working to close the pores tightly prohibitive leak heat them. Animal hair benefit from intensive chills in another, when faced enemies get goose bumps seem larger than actually look stronger, as it is during the advantage of Qharh cold body thermal insulation keeps temperature
