I’m not sure if “cavemen” is a scientifically accurate word, or if “Neanderthal” is appropriate, but my question is essentially: in the early days of humans, did their nails and hair keep growing, or did they need some sort of grooming? (I’m thinking of how domestic animals often need nails trimmed but rarely need haircuts vs wild animals who obviously don’t have those options).

I’m also curious if acne was a problem for early humans, or if the way their bodies were and the way life was made it a non-issue.

Pretty much any facts about the human body/life in those times would be appreciated!