Hi, yeah, turning gray and at what-ever age is mostly from genes,,but, what crohns can do though, is slow down body ageing or prolong gray,, well atleast me, I became very sick at 11-12 years and since, even after my operations I never had a day without any stomach pains or something going on with me and my body's insides, inturn my doctors called it "survival mode" from a early age my body has been in a form of survival mode, I'm 48 now, and I have apsolutly have no gray hair on me ,anywhere...and my skin is very rubbery ,stretchy and looks young,,but on the inside, I'm animic, very malnourished, very low vitamins and my eyes and eyeballs are sick, with a cronic disease cause from C.D., teeth crumble away,ect...Before C.D. gets to bad on you and your body, try juicing, this was a miracle for me , for the first 3 months I was full of energy and ready to deal with anything,,I juiced,,[2] each of,; apples,carrots , celery , color green leafs, swiss char leafs, asparigus storks and 1/2-1 pear....from the frist drink I felt it, I felt the energy, I cant explain it was unbieleable just how great it made me feel, and still 2 years later I feel great, and before that everyday I was thowing-up,very or ready to throw-up ALL day long,, I was miserable this was going on for 3 years everyday.....Rodney..Good luck