Why Humans Get Goosebumps, A Surprising Evolutionary Trait
Goosebumps might seem like a minor reaction to cold or strong emotions, but this small physiological response has deep evolutionary roots. Scientifically known as piloerection, goosebumps occur when tiny muscles at the base of hair follicles contract, causing hairs to stand upright. In our animal ancestors, this reaction helped create an insulating layer of air…