How do goosebumps help your body?

Goosebumps occur when tiny muscles at the base of hair follicles contract, often in response to cold or emotional stimuli. This reflex, known as piloerection, helps to create an insulating layer of air for warmth or makes an animal appear larger to scare off predators. In humans, while the physiological benefits are less significant, goosebumps serve as a remnant of our evolutionary past, reflecting our body's response to stress or cold.