I got my first gray hairs when I was 26. My grandfather was completely white in his 30's. During the depression he used to take black shoe polish and darken his hair because no one would hire him - they thought he was lying about his age. I started coloring my hair when I was 30 and continued for about 20 years, then decided I was tired of doing that and let it go natural. I am fortunate that most of my hair is now a silvery gray and the back still has some of the dark brown but I think it is beginning to turn now. I am thinking about doing a temporary dye of purple or blue - just to shock all my friends!