Koreans tend to wash their hair more often than people from other countries due to their cultural value of cleanliness and healthy-looking hair. The frequency of washing hair varies depending on personal preferences, climate, hair type, and the use of hair products. Over-washing can have negative effects on hair health, so alternative methods such as scalp massages, hair masks, and dry shampoos are used. To maintain healthy hair, it's important to follow a few tips such as using mild shampoos, avoiding excessive heat styling, and eating a balanced diet. Understanding cultural differences in hair care practices can help appreciate the diversity in beauty routines.