A Receding hairline
A receding HARE line!
A: a receding hare-line.
Both of the groups that are concered about the health of someone playing both begin with the letter P.
Because they literally can't even.
His ears! Yes, this is a real joke I got from a Laffy Taffy wrapper today, not 30 years ago. I did not laugh.
One. It's a trick question.
A receding hairline.