In winter, when my hand touches metal, it's like getting an electric shock. I hope a friend can explain why.

In winter, the climate is dry, and the clothes you wear are prone to generate static electricity, which accumulates much on your body. When you suddenly discharge, you will feel electric shock.

Therefore, it is recommended that:

Keep your skin moist and there will be less static electricity.

Do not wear chemical fiber products.

Wash your hands often to avoid the accumulation of static electricity. When there is a small amount of static electricity, you can discharge it by washing your hands.

Do not touch metal products directly. You can contact other insulating things first to transfer some static electricity. The most direct thing is to touch the ground first.