Sweating (also called perspiration or sometimes transpiration) is the loss of a watery fluid, consisting mainly of sodium chloride (commonly known as salt) and urea in solution, that is secreted by the sweat glands in the skin of mammals. Sweat also consist of the chemicals or odorants 2-methylphenol and 4-methylphenol.
In humans, sweating is primarily a means of temperature regulation. Evaporation of sweat from the skin surface has a cooling effect due to the latent heat of evaporation of water. Hence, in hot weather, or when the individual’s muscles heat up due to exertion, more sweat is produced. Sweating is increased by nervousness and nausea and decreased by cold.
when the sweat evaporates it takes with it the fast moving molecules of your skin, and it is these heated therefore fast moving molecules which make you feel hot.
Evaporation.
The sweat evaporates off of your skin. Evaporation takes energy, and that energy comes from the heat of your skin. Your skin is full of tiny blood vessels, so your blood is cooled this way. That’s why you feel cold when you get out of the shower: the water from the shower is evaporating off of your skin and making you chilly, even though the bathroom is really nice and warm. That’s also why humid days feel hotter: it’s harder for sweat to evaporate, so there’s less of a cooling effect.
Sweating (also called perspiration or sometimes transpiration) is the loss of a watery fluid, consisting mainly of sodium chloride (commonly known as salt) and urea in solution, that is secreted by the sweat glands in the skin of mammals. Sweat also consist of the chemicals or odorants 2-methylphenol and 4-methylphenol.
In humans, sweating is primarily a means of temperature regulation. Evaporation of sweat from the skin surface has a cooling effect due to the latent heat of evaporation of water. Hence, in hot weather, or when the individual’s muscles heat up due to exertion, more sweat is produced. Sweating is increased by nervousness and nausea and decreased by cold.
In India, eating hot curries makes you sweat and that cools you down and better able to cope with the hot climate.
Similarly a hot cup of tea will cool you down more than a cold coca cola will. Yet so many people head for the fridge when the sun comes out!
Evaporation is the correct answer.
it cools the skin and therefore the blood under the skin so that cooled blood circulates throughout the body helping to cool you down.
when the sweat evaporates it takes with it the fast moving molecules of your skin, and it is these heated therefore fast moving molecules which make you feel hot.
Evaporation.
The sweat evaporates off of your skin. Evaporation takes energy, and that energy comes from the heat of your skin. Your skin is full of tiny blood vessels, so your blood is cooled this way. That’s why you feel cold when you get out of the shower: the water from the shower is evaporating off of your skin and making you chilly, even though the bathroom is really nice and warm. That’s also why humid days feel hotter: it’s harder for sweat to evaporate, so there’s less of a cooling effect.