In flight, the human intestine emits more gases. The pressure change during takeoff causes bloating and, as a result, flatulence. This feature of the body is a big problem for pilots, 60% of whom regularly complain of bloating.
In the late 1960s, NASA was seriously concerned about the problem of flatulence - at that time it was believed that an excess of intestinal gases inside manned spacecraft could cause ball lightning.
The habit of nose-picking is frowned upon by doctors, but 91% of people on earth do it regularly. Why? Obviously, for the reason that many are too lazy to use a handkerchief. Some people pick their nose due to a mental disorder. There is a known case when a 53-year-old woman indulged in picking with such zeal that she pierced her nasal septum. However, for most people, the addiction proceeds without consequences.
All people can be divided into two broad categories - those with dry wax in their ears, and those with wet wax. This trait, as it turned out, is genetically encoded. The difference in just one letter of the genetic code determines not only the consistency of earwax, but also its smell.
You might be surprised to learn what substances leave the human body with sweat. For example, the sweat of some people contains 7% of all urea released per day. In addition, according to research, sweat plays an important role in communication - the smells accompanying a sweaty person can signal others about his emotions, such as fear.
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Sneezing when exposed to bright light has been found to be extremely common in humans. According to modern medical data, this feature is transmitted with genes, and its first descriptions date back to the third century BC. In some cases, the urge to sneeze at the sight of light can be dangerous, such as when driving through dark tunnels.
What glands are located in our eyes? Tearful, you say, and you will be right only partly. In the upper and lower eyelids of our eyes are the so-called meibomian glands. The substance released by them is of a fatty nature and serves to protect the eyelids from contact with tears.
Based on materials from the BBC
ALEX KUDRIN
