Original photo by © jockermax—iStock/Getty Images
Goosebumps are typically involuntary — an automatic reflex triggered by cold temperatures, fear, or strong emotional experiences. This response is governed by the sympathetic nervous system, which regulates unconscious bodily functions such as heart rate, pupil dilation, and the tiny muscles at the base of hair follicles that contract during a process called piloerection, creating the visible tiny bumps on the surface of the skin.
But there is also evidence that goosebumps can be intentionally induced. Some people can reliably trigger the same physiological response by recreating the mental and emotional conditions that normally precede it. This may include vividly recalling emotional memories, listening to specific types of music, engaging deeply with art, or focusing attention on the bodily sensations of goosebumps. In other words, they can cause goosebumps by simply thinking about goosebumps.
Neuroscience research suggests that people who report this ability — called voluntarily generated piloerection — often show heightened sensitivity in brain networks involved in emotion, reward, and sensory integration. Their ability to produce goosebumps may result from their brains being more responsive to the kinds of stimuli that naturally cause the sensation in the first place.
Numbers Don't Lie
More Interesting Reads
An older term for goosebumps is “______,” referring to the skin’s resemblance to plucked poultry.
Ready to reveal?
Confirm your email to play the next question?
An older term for goosebumps is “hen-flesh,” referring to the skin’s resemblance to plucked poultry.
Cats get their own version of goosebumps.
Cats are one of the most visibly recognizable examples of piloerection in mammals. When a cat suddenly arches its back and fluffs up its fur, it isn’t doing it on purpose; it’s an automatic response driven by the same biological mechanism that produces goosebumps in humans.
This response is controlled by the fight-or-flight response of the sympathetic nervous system and can be triggered by fear, stress, or heightened arousal, as well as cold temperatures. Tiny muscles at the base of each hair follicle contract without conscious control, lifting the fur across the body within seconds. The result is a noticeably “puffed up” appearance that can make the cat appear larger, which may help deter potential threats or rivals during confrontation.
The same mechanism is found in many other mammals, including dogs, porcupines, rodents, and some primates. In colder conditions, it can help trap a thin layer of air close to the skin, providing some insulation. In emotional or social contexts, it may serve as a visual signal, making the animal appear larger or more imposing to others.
Kristina is a coffee-fueled writer living happily ever after with her family in the suburbs of Richmond, Virginia.
top picks from the Inbox Studio network
Interesting Facts is part of Inbox Studio, an email-first media company. *Indicates a third-party property.
