about the hair

I wear my hair in a bob now. And I was going to grow my hair. But, I think I'll have my hair cut short. What kind of hairdo should I get?

The hair has some roles. One is to protect the head. The other is a health maintenance role. It works as an organ drains the material which is harmful to a body.
Because we accumulate it in the body in everyday life.
It's mercury / arsenic / cadmium / lead / aluminum / copper .
I didn't know that. Did you know?