Why do goose aches hurt?

Goose aches, often referred to as "goosebumps" or the sensation of cold or fear, occur due to the contraction of small muscles at the base of hair follicles, which causes the hair to stand up. This response is triggered by the autonomic nervous system, often in reaction to cold temperatures or emotional stimuli. The sensation can also be linked to the release of adrenaline, which prepares the body for a "fight or flight" response. Additionally, discomfort may arise from the tension in the muscles or nerves involved.