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This article is about the medical symptom. For the New zealand rock band, see The Chills.
Chills are a feeling of being cold. This is a symptom of many diseases, largely caused by the patient having an elevated temperature (37-43C) or (99-106F), and thus feeling everything else relatively cold. Taking a leaf out of the Beatles Help!, the Chills signal COLD in semaphore on the cover of their first studio album. ... A disease is any abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person affected or those in contact with the person. ...
Bloodborne chemical messengers, such as interleukins, may also contribute to the sensation. Interleukins are a group of cytokines that are expressed by white blood cells (leukocytes, hence the -leukin) as a means of communication (inter-). The function of the immune system depends in a large part on interleukins, and rare deficiencies of a number of them have been described, all featuring autoimmune...
Rigors is a similar term. A rigor is an episode of shaking occurring during a high fever. ...
Chill out (sometimes chillout), a term derived from a slang injunction to relax, emerged in the early and mid-1990s as a catch-all term for various styles of relatively mellow, slow-tempo music made by contemporary producers in the electronic music scene.
A number of compilations with "Chill Out" in their titles were released in the mid-1990s and beyond, helping to establish the genre as being very closely related to downtempo and trip hop but also incorporating, especially in the early 2000s, slower varieties of house music, nu-jazz, psybient, and lounge music.
Chill out is generally tonal, relaxing (or at least not as "intense" as other music from the styles it draws from), and generally does not incorporate music that emphasizes "hard," "deep," or particularly hypnotic rhythms.