For most people who work in poor sanitary conditions, taking a bath every day in dry winter can easily destroy the normal skin structure. The outermost layer of human skin is the stratum corneum, and there are not many scales mixed with skin sweat. Washing off this part every day has a certain protective effect on the skin. Taking a bath too often, the cuticle is damaged, and the protective effect on the skin is lost. The water in skin cells is more likely to evaporate and the skin is dry. Traditional Chinese medicine believes that "dryness leads to wind, and wind causes itching", in which "wind" refers to a cause that wanders in the body, leading to itchy skin. Therefore, it is more appropriate to take a bath 2-3 times a week in winter. I hope it helps you.