Decatur, Georgia. For the southwestern Georgia county, see Decatur County, Georgia. Decatur is a city in, and county seat of, DeKalb County, Georgia, United States. With a population of 20,148 in the 2013 census, the city is sometimes assumed to be larger since multiple zip codes in unincorporated DeKalb County bear the Decatur name.
Chills are caused by rapid muscle contraction and relaxation. They are the body's way of producing heat when it feels cold. Chills often predict the coming of a fever or an increase in the body's core temperature. Chills are an important symptom with certain diseases such as malaria.
Conditions that may cause variations in body temperature. 1. Hypothyroidism. If you feel cold, then suddenly youâre hot without adjusting the room temperature, it may be due to a thyroid problem. Thyroid, an endocrine gland located above the collarbone, is responsible for regulating the metabolism, heart rate and body temperature.