I have read that when someone is stressed, they can develop more things.
Ex: Trichotillomania. The pulling of hair.
There are people who pull their hair when they are stressed/bored/excited/not knowing. They can pull arms, head, eyebrows, face (beards), etc. They might not notice they are pulling. They start pulling, and it usually does not hurt them.
Does anyone else deal with Trichotillomania?