Why does wearing cotton trousers hurt your feet in winter?

In winter, the weather is dry, so people's skin and clothes are dry and easy to carry static electricity. Foot hair is very light and easy to be electrostatically adsorbed. People's sports will drive the friction between cotton trousers and feet, and the electrostatic adsorption of foot hair on cotton trousers is equivalent to "pulling" foot hair, so it hurts.

It is also possible that the underwear is too tight and the leg hair is embedded in the gap of the underwear. When you walk, your leg hair will be pulled off by your underwear, so you will feel pricked. In addition, it is recommended not to wear thermal underwear with hair on the back, which is particularly airtight and tight. I wore it once and never wore it again. It feels good to wear ordinary cotton underwear now. If you are afraid of the cold, buy thick clothes and wear woolen pants.