Who was the first hairdresser? Detailed answer

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Who was the first hairdresser? Detailed answer

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Who was the first hairdresser?

Barbershops have been around since very ancient times, so ancient that we cannot say for sure who was the first barber. The first mention of barbershops in history dates back to ancient Egypt. Later in ancient Greece and ancient Rome, barbershops became favorite meeting places where people discussed the day's events. In ancient times, hairdressing salons performed not only the functions that modern hairdressing salons perform.

In ancient times, doctors did not want to deal with surgery. And it was the hairdressers who provided surgical services to patients. They did bloodletting, that is, they made incisions so that the "bad blood" left the body. They treated wounds, some of them pulled out teeth. In England, barbers were given the right in 1462 to create their own guild. In 1540, this guild united both barbers and surgeons. But by this time the King of England forbade barbers who cut their hair and shaved their beards from practicing surgery.

Over the next two centuries, the work of the barber became more and more separated from that of the surgeon. And in the end, barbers were only allowed to cut their hair. Incidentally, the English word "hairdresser" is of Latin origin. In Latin, it means "barber". Obviously, the main occupation of the ancient hairdressers was not cutting hair, but putting in order the beard.

Author: Likum A.

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Stress inhibits immune cells 10.05.2021

The connection between the immune and sympathetic nervous systems has been studied for a long time. It is known that in the immune organs (for example, in the spleen and in the lymph nodes) there are sympathetic nerve fibers. But the main immune work is performed by special cells that wander through the tissues and synthesize a huge amount of signal proteins. How does the nervous system affect them? Sympathetic neurons work with the help of the neurotransmitter norepinephrine. Employees of the University of Melbourne found that norepinephrine literally slows down T-cells - because of it, they begin to move more slowly.

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The sympathetic nervous system also slows down other immune cells, such as B-lymphocytes and dendritic cells - it is possible that the same norepinephrine mechanism works with them as with T-cells. It is also known that if sympathetic nerve fibers are specifically stimulated, immune cells will react worse to the herpes virus, plasmodium malarial and malignant melanoma cells. From this, far-reaching conclusions can be drawn about how chronic stress - and many of us constantly live in chronic stress - plays into the hands of viral (and not only viral) infections and cancer cells.

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