I inherited mine from my father. Then after my hysterectomy it thinned a little more.Mine got damaged from way too many perms when I was younger. (Thanks, mom). My mom wanted her only girl to look like Shirly Temple. I came out with perfectly straight hair. She started perming it when I was still young. And I got regular perms until I was in my late 20s. Then When my hair started changing, I stopped the perms. To late. That is also why I won't color it.