As a northeast bath owner who has been in the business for 20 years, let me answer your question. The climate in the north is drier than that in the south, with heavy sandstorms all the year round. Dry skin makes dandruff more than that in the south. Even if we live well now, every family has a water heater. Like southerners, we take a bath at home every day and once a week! The purpose of rubbing bath is to exfoliate and keep skin delicate! In addition, it can promote blood circulation and relieve fatigue! After forty years old, compared with Sichuanese, Northeasters are really a little old, and they are not nourished by Sichuanese, which is caused by the climate! The question of what is dirty varies from person to person. There are also many technicians in Anhui in my shop. As far as personal hygiene is concerned, it's really not cleaner than us northerners! !