In the 19th century, an extensive survey of people with tuberculosis was carried out. As a result, it turned

In the 19th century, an extensive survey of people with tuberculosis was carried out. As a result, it turned out that people who wore caps suffer from tuberculosis more often than those who wear caps. Why?

This is due to the fact that the owner of the headdress belongs to the social class. Cylinders are an attribute of middle class clothing in Europe and America. Caps have become an attribute of the clothing of the working strata of the population. It was not convenient for them to wear hats, and head protection was required.

The environment, lifestyle, hygiene, better nutrition and medical support – all this in a complex made it possible for the owners of cylinders to be less exposed to a dangerous disease.