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Why evaporation of sweat slows down when the relative humidity is high?
Wiki User
∙ 10y ago
Sweating, by itself, does nothing to cool the body, unless the water is removed by evaporation -- and high relative humidity retards evaporation.
This explains why it feels so much hotter in high humidity. When relative humidity reaches a high enough level, the body's natural cooling system simply can't work. Sweat evaporates very slowly, if at all, and the body heats up. In extreme cases, people begin to suffer from heat cramps or heat stroke, which is basically organ failure as the body begins to cook itself.
Wiki User
∙ 10y ago
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Does Higher humidity makes you sweat more?
Yes. You perspire to lose heat- from the evaporation of the sweat. In high humidity, sweat evaporates poorly, so you sweat more (because you are cooled less).
Why is the concept of relative humidity important to understanding weather?
Humidity plays an important role in human comfort. People feel cooler in drier air because their perspiration can readily evaporate. They feel warmer in air with a higher relative humidity because the evaporation process is slower. The surrounding air has to be able to absorb water or sweat so that evaporation occurs. Evaporation requires that the body produce sweat and that the air is able to absorb it. Relative humidity in excess will make a human feel discomfort because the air will not be able to absorb the perspiration from their body which removes heat.
Why is it more difficult to keep cool on a hot humid day then it is on a hot dry day even if the temperatures are the same?
There is a limit to how much water the air can hold. When the air cannot absorb any more water, the relative humidity is at 100%. The closer the air gets to 100% relative humidity, the less evaporation takes place. Evaporation of the sweat on our skin is what cools us on a hot day, because the process of evaporation is fueled by heat energy, so as sweat evaporates, it draws heat from our skin.
Why would you sweat a lot in the rain forest?
Yes, because of the very high humidity which would not allow evaporation from the skin.
Why would you be likely to sweat a lot in the rainforest?
Yes, because of the very high humidity which would not allow evaporation from the skin.
Through what process does water enter the atmosphere from your body as you sweat?
Well it has to do wether you live n ear an ocean. The water vapor in the air makes you feel icky. So the humidity doesn't let your sweat evaporate so the sweat stays on you. If you lived no where near the ocean you wouldn't feel so gross. That's what happens.
Why do you use relative humidity in most reports?
Relative humidity is the amount of water vapour, compared to the maximum that could be, in the air at that temperature. A higher humidity means that less water can be absorbed into the air - since the body cools itself by allowing sweat to evaporate, that effectively lowers the amount of heat that can be lost by this method - and vice versa.
When humans sweat water release heat through?
Evaporation cooling
Why does a pop can sweat?
i think a pop can sweat because of the humidity
Why dosent sweat evaporate on a humid day?
The evaporation of sweat is due to water molecules taking energy from the body (cooling it) . The water molecules have higher energy and so enter a gaseous state. In conditions of high humidity, evaporation becomes virtually impossible since the air can only absorb a certain amount of water vapour. ie. you cant have more than 100% humidity, so only a certain amount of water can be absorbed, so the sweat remains on your skin instead of evaporating.
Why do we sweat more in humidity?
It is actually not a matter of sweating more but of it being more difficult to evaporate the sweat. If you are in a dry and windy place it is very simple for sweat to evaporate, in a more humid area there is more water in the air already and therefore makes evaporation of the sweat much more difficult. Then it would appear that you sweat more because you are seeing the sweat, however it is a matter of evaporation.
Why do hot and humid summer days feel hotter than hot and dry summer days?
The evaporation of your perspiration is lessened when there is high humidity, making it more difficult for the body to cool itself off. It is not the act of sweating that cools you off, but the evaporation of the sweat.
