Wearing thick clothes, the armpit body temperature will not rise. We know that the human body can dissipate heat through convection, radiation and evaporation, after wearing clothes actually reduces the evaporation and convection of the body, as well as radiation as a method of heat dissipation, which can have a thermal insulation effect on the human body, but this is only for the body’s thermal insulation, and can not rely on clothes to generate additional heat, the human body can not wear clothes after the fever and other situations. In fact, the warm feeling caused by wearing thick clothes is due to the reduction of heat emission, so there will be a feeling of partial heat, but the body temperature measured at this time and the normal body temperature range is exactly the same. If it exceeds the normal temperature range, it can only be said that there is a disease or other physiological problems that interfere with it, but not that it is due to the increase in body temperature caused by wearing thick clothes.