Why Do We Perspire?
We all know that our body is like a furnace. The food that we take produces heat in our body by the process of oxidation. In the body of normal adult, about 2500 calories of heat produced every day by the process of oxidation. Now the question arises what happens to this heat in the body?
Certain metabolic activities are regularly taking place in our body. These activities do not allow the temperature to go beyond 98.4 degrees F. The body furnace keeps its temperature normal through perspiration. In fact, the ‘temperature centre’ which is situated in the brain controls the body temperature. The temperature centre consists of three parts: control centre, heating centre and cooling centre. If, because of some reason the temperature of the blood falls below the normal, the heating centre starts working immediately. Simultaneously, certain combustible chemicals are produced by some special glands. These chemicals are used by our muscles and liver to raise the internal temperature of the body to the normal degree. Alternatively, if the body temperature rises because of some reason, the cooling centre starts working. The process of oxidation slows down. When the internal temperature of the body rises, the sweat glands start excreting sweat. Urea, water and some salts come out from our body with sweat.
