Video explains why we get goosebumps
A two-minute video explains why we get goosebumps when we experience strong emotions or feel cold. Goosebumps are physiological leftovers from our animal-ancestors and occur due to the release of adrenaline hormone causing the body-hair to stand. When an ape perceives a threat, its nervous system releases a hormone due to which it looks bigger to scare off potential attackers.