- Without a hat, your chances of developing meningitis or SARS do not increase. “Meningitis is an infectious inflammation of the meninges,” explains Valentin Kovalev. - It needs some kind of infectious agent: a virus, for example, or a bacterium. Hypothermia, if it plays any role, is negligible. For the same reason, you can go outside with a wet head.
- As for the hair, it does not seem to fall out from the cold. In the guidelines of medical organizations, walking without a hat is not listed as a risk factor. According to some studies, more hair falls out in summer and autumn . “Hats that are too tight can interfere with normal blood flow in the scalp, contributing to hair loss,” says Anastasia Ugryumova. - Also, long-term wearing of tight hats can increase hair breakage. It is better to choose a hat that is not tight, made from natural materials. Then it will protect the hair and scalp from overdrying.
- The cold can give some people a headache. Previously, in the International Classification of Headache, this condition was called ice-cream headache (headache due to ice cream), now - "headache due to cold stimuli" . Most often in this case, the center of the forehead hurts. Usually it passes within half an hour, if the fact is that the person was on the street in winter. (If you just ate ice cream, the pain would go away faster.) The cure is to wear a hat. Cold can also trigger a migraine attack , another type of headache that manifests itself in a slightly different way. For example, it often occurs on one side only, the attacks last longer, and it can make you feel sick, and it gets worse from noise or light.