Male 22 years old, left nipple, grew a hair, is it normal?

First of all, it is normal. This is the normal development of the body and has no effect on the body. Some people have moles on their faces, and a hair grows on the moles. Some people have a hair on their nipples, while others have a long hair on their arms. I used to have a long hair on my nipple when I was in my twenties, but now I don't know when it will be gone when I get older. It is said that this kind of hair represents your good popularity and interpersonal relationship. If this hair is gone, interpersonal relationship will get worse.