What makes an astronaut sweat? – Comedy.com

entrance 22.09.2022 20:30 correction 22.09.2022 13:33
Views 43

entrance 22.09.2022 20:30correction 22.09.2022 13:33
Views 43

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Sweating is often annoying, but as we all know, sweating is important for maintaining body temperature. Also, we introduced interesting facts about sweat that we were not familiar with on the American radio show ‘NPR’.

1. Sweat is water and salt

Sweat is simply the water and salt secreted by the sweat glands. When sweat changes from liquid to gas and evaporates, it cools the blood by drawing heat away from the blood just under the skin. This blood circulates throughout the body to help maintain the proper temperature for the body to function.

2. Sweat has no smell …, however

Sweat is mostly odorless. At least in the case of sweat dripping from the forehead and arms after running. However, armpit or groin sweat is different. The sweat glands in this area are called apocrine glands, which secrete sweat in a protein-rich form that bacteria eat. It is a byproduct of these sweat-eating bacteria that cause odor.

3. These bacteria are actually good bacteria

Even if you are worried about the smell of sweat, it is best not to immediately dry it with an antibacterial soap. This is because odor-causing microbes also help protect the skin from harmful pathogens and prevent eczema. Rather, it is enough to remove the odor by gently lathering it with a soft soap.

4. Most animals don’t sweat

Scientists estimate that sweat glands evolved when humans migrated to grasslands and pastures between 1.5 and 2.5 million years ago. Most other animals don’t sweat. If animals can’t find shade or water, they pant to keep their bodies from getting too hot. In one of the many ways animals keep cool, pioneered by NPR, the Maryland Zoo’s lions snack on frozen blood to cool off during the scorching summer.

5. It is best to bathe in warm water during tropical nights

It may not make sense at first glance, but taking a warm or warm bath in the evening will make you feel better before you fall asleep because it absorbs heat from your body and cools it as the water evaporates from your skin. It is best to do this an hour before going to bed.

6. Some insects want the salt in human sweat

Some insects, such as mosquitoes, are attracted to human sweat. Insects, like us, need the sodium in salt, as it does in the salty sweat of humans. Scientists speculate that the ancestors of some sweat mosquitoes millions of years ago discovered that there was a much more nutritious substance under human skin: blood. Blood-sucking mosquitoes had an evolutionary advantage over mosquitoes that did not suck blood and reproduce.

7. What if astronauts sweat?

Sweat can be a problem in low-gravity environments such as space. Without gravity, sweat does not drip from the skin. Sweat builds up on the skin, which can interfere with the functioning of electronic equipment and make the astronaut’s behavior more uncomfortable. Astronauts wear special undergarments with cooling tubes that quickly dissipate heat during spacewalks. Interestingly, the space station recycles sweat and uses it as drinking water.

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