A cold chill (also known as chills, the chills or simply thrills) is described by David Huron as, "a pleasant tingling feeling, associated with the flexing of hair follicles resulting in

goose bumps Goose bumps, goosebumps or goose pimples are the bumps on a person's skin at the base of body hairs which may involuntarily develop when a person is Tickling, tickled, cold or experiencing strong emotions such as fear, euphoria or sexual arousa ...

(technically called piloerection), accompanied by a cold sensation, and sometimes producing a shudder or shiver." Cold chills are a purely subjective response and, unlike piloerection, no objective physiological measure of cold chills exists. Unlike shivering, however, it is not caused by temperature, but rather is an emotionally triggered response when one is deeply affected by things such as music, speech, or recollection. It is similar to

autonomous sensory meridian response An autonomous sensory meridian response (ASMR)Marsden, Rhodri (20 July 2012), ''The Independent''. is a tingling sensation that usually begins on the scalp and moves down the back of the neck and upper Vertebral column, spine. A pleasant form ...

; both sensations consist of a pleasant tingling feeling that affects the skin on the back of the neck and spine. However, cold chills should not be confused with piloerection. Recent research has shown that self-reported chills do not correspond with observable piloerection, suggesting that they are independent phenomena.

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Symptoms and signs {{Symptom-stub

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