This summer was hot, and it's still hot and some places! With individuals all over the planets encountering hazardously high, record-breaking temperatures, we've all been perspiring.

Even though most of the time you don't like to sweat, the salty liquid that comes off your skin is essential to keeping you cool. Furthermore, there is a lot more to the bring substance than meets the eye.

This summer, the number of NPR science staffers braved the heat to get the inside scoop on sweat. Their reporting forms the basis for these lessons:

1. By changing into gas, sweat keeps you cool. Let's start with the basics. Your skin's million of glands secrete primarily water and salt in sweat. Basically, those glands are coiled loops that help move some of the liquid that is sloshed between your  cells, bones, and organs up and out of the body through the surface.                                   When sweat on your skin evaporates, it takes some heat from the blood under your skin as it turns from a liquid to a gas. The now-cooler blood then goes around your body and profoundly back, helping keep all your internal part at the right temperature to work.
2. The majority of sweat doesn't smell. At least the sweat that drips from your arms and forehead after a run doesn't. However, the sweat that comes from your groyne and armpits stinks in a different way. The sweat glands in those locations are called apocrine glands and produce a protein-rich sweat that bacteria consume. Body odour is caused by the byproducts of these bacteria feeding on sweat.
3. The microscope organisms behind BO are really your partners. Regardless of whether you're stressed over your foul perspiration, don't go scouring yourself with antibacterial cleanser in quest for new pits at this time. Body odor is caused by microbes that protect your skin from harmful pathogens and even help prevent eczema.                          If you use regular mild soap, a light sudsing should be sufficient to at least temporarily eliminate the stench without completely eliminating the bacterial friends.
4. To be clear, the majority of animals do not sweat. Of all of them, you sweat the most. Okay, all humans, not just you.                                                  Researchers think our precursors developed sweat organs between 1.5 million and 2.5 million years ago, quite a while age, as we moved from under the cool shelter of the woods into the  meadows and grasslands, some time before we developed our huge minds.     The majority of other animals, on the other hand, don't sweat, so if they can't find shade, a river, or a pool, they have to find other ways to keep from getting too hot, like panting. In her rhyming exploration of the various ways that animals keep cool, NPR's Rebecca Hersher describes how frozen bloodsicles were given to lions in a Maryland zoo during a hot summer to help everyone stay cool.
5. Researchers say that when you get out of a warm or lukewarm evening bath, the water evaporates from your skin, pulling heat from your body and cooling you down before you go to sleep. This may seem counterintuitive, but a warm bath is better than a cold shower to prevent overheating. Scientists told NPR reporter Joe Palca that this life hack works best about an hour before bedtime, and when you're cool, you'll sleep better and for longer.
6. Unfortunately for us, many insects, including mosquitoes, are attracted to human sweat. Some insects seek the salt in sweat. Like the rest of us, insects require sodium, and our salty sweat provides this.                               Researchers suspect that a huge  number of years prior, some perspiration-drinking precursors of mosquitoes found there was a considerably more nutritious substance underneath human skin our blood. Biters that took blood gained an evolutionary advantage over nonbiters and prospered.
7. Because sweat doesn't exactly drip off the skin without gravity, even after a lot of exertion, astronauts need extra help to get rid of their body heat. This can be a big problem for people in a low-gravity environment like space because sweat doesn't exactly drip off the skin. Instead, it just kind of sits there and gathers, which can cause electronic equipment to malfunction and make spacewalks even more uncomfortable.                Therefore, during spacewalks, astronauts don special underwear, which is stuffed with cooling tubes that remove heat. In the controlled environment of a space station, one advantage is that ventilation system collects any additional sweat-related moisture and recycles it into fresh drinking water for the astronauts.