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Even if most surgical techniques of today are rather recent developments, people have been cutting each other up in the hopes of fixing various diseases for a long time now. Surgery has a long history and shows up in historical records from various regions of the world. However, early humans did it…
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Sweat cools down the body. It may even betray a nervous mind. But for scientists, it is so much more. Its chemicals improve athletic performance and reveal the strange influence of male sweat on both genders. Inventions in this field are peculiar—from perspiring robots to sweat-sensing clothing that…
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Weeping is not just about ruining a good tissue. Researchers have found that crying could serve an important evolutionary purpose, that tears send chemical signals to other people, and that the salty globules can generate electricity. Then there are the mysteries, like why some people cry more on…
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