I can't tell if this is just a thread for men or not. But it'll happen to the ladies, too. I'm 45, brunette, and I have a gray patch on top of my head that I pay good money to have skillfully covered up. Then I have a few streaks added in for variety. I inherited a graying gene from my dad, which isn't fair. My sister doesn't seem to have that at all. Anyway, I'm not letting any grays show through till I'm in my 50s, and then only a few. I wont go all the way gray until I'm in my late 60s, I've decided.