Hair can build up dirt, sweat, and oils over time

https://open.substack.com/pub/lukasxuck715/p/comprehending-hair-systems-transforming?r=3ktbg5&utm_campaign=post&utm_medium=web&showWelcomeOnShare=true

Hair can accumulate dirt, sweat, and oils gradually, making normal cleaning a vital facet of keeping its sanitation and health