2007-03-12 20:36:10 · 4 answers · asked by Prinfashion 1 in Science & Mathematics ➔ Other - Science
We perspire in an attempt to cool our bodies because the sweat evaporates and in doing so draws heat from the body and thus cools it. But when the air temperature is high, evaporation takes place but without drawing much heat from the body and so the body is forced to continue to perspire. This results in a saturation of the air surrounding the body with moisture (humidity) and the evaporation rate drops drastically. So we feel sweaty.
If a breeze is blowing or if we switch on a fan, we immediately feel cooler and the perspiration dries up because the humid air is taken away and the evaporation is facilitated.
Absorbent cottons are another option which helps us cope with the the perspiration, though the cooling effect is minimal in such case. Absorbent talcum powders also minimise perspiration by absrobing the excess sweat.
2007-03-13 00:27:12 · answer #1 · answered by Swamy 7 · 0⤊ 0⤋
It depends on the humidity in the air. If humidity is more the perspiration does not dry out fast. That is why we sweat more in coastal areas becoz the humidity tends to be more there becoz of the sea.
2007-03-13 04:35:29 · answer #2 · answered by readymaddy 3 · 0⤊ 0⤋
humidity in the air is high so the rate of you losing moisture otthe atmosphere is also low
2007-03-13 03:45:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
because you go on perspiring
2007-03-13 03:44:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋