Avoid too loose

The size of the hat must match the size of your head. The hat is too small, too tight on the head, uncomfortable, affecting the blood circulation of the head. The hat is too big, not warm, and easy to fall off. When choosing a hat, you should consider the size of the head circumference, the volume of the hair, and the shrinkage of the hat after washing. Teenagers are in the developmental stage, hats should be wider when they are used; the choice of hats should be practical for the elderly; the winter hats should be soft, comfortable, light and warm; in summer, they should be light, airy and light.

Avoid wearing for a long time

The human scalp is rich in sebaceous glands, especially young people. The secretion of sebum is strong, and the adsorption of sweat and dust can make the inside of the cap or the lining greasy and odorous. This is a good breeding environment for the fat-saturated saprophytic fungus. This unclean hat is worn on the head and can easily cause folliculitis due to friction with the scalp.

Moreover, the sweat is corrosive after volatilization, which tends to make the hat brittle, fade and damage. Therefore, after wearing the hat for a while, apply warm soapy water and soft brush to scrub, and then rinse with warm water or hot water. In order to facilitate cleaning, you can also put a thin cotton cloth in the hat, so it is convenient to wash and change frequently. However, it is not possible to use a non-absorbent, airtight plastic sheet as a lining because it is not conducive to head care.

Avoid taking off your hat at will

When wearing a hat in winter, you should be careful not to take off your hat. For example, after sweating in a long-distance running, or just entering a room with a high temperature, if the hat is taken off casually, it is easy to spread quickly from the head due to body heat, which may cause a cold.

Avoid casually borrowing someone else’s hat

Some people have head lice or other infectious diseases, and hats often carry germs. If you borrow someone else's hat, you may be infected unconsciously.