Perspiration is one of the ways that the body is kept at a normal temperature, around 37 Celsius (98.6 farenheit). If we are too hot the vessels in the skin are opened so that the extra heat can radiate away and also to help our perspiration on evaporate. Perspiration is like a shower which washes the body out from within . The fluid flows out through millions of tiny opening in the skin in the form of microscopic drops . These drops evaporate quickly and cool the body when necessary.