Why do people associate of having gray/white hair to old age? According to my research, a certain color-producing pigment that our body produces which is melanin, is responsible for the color changes in our hair. And as we age, it produces less or stops. For a typical Filipino, our natural hair color is black. So as we grow older, the melanin (which is color black for our hair) is producing less causing our hair to turn gray/white in color.
Normally, white people starts having gray/white hair in their mid-30s. For Asians, like Filipinos, we start having it in our late 30's and African-Americans in their mid-40s. There are also instances that even as young as in their 20's, they already have silver strands visible in their hair. Experts say, having premature gray hair is also hereditary. If your parents or their lineage starts having gray hair at a very young age, chances are you will be acquiring at an early age too. Early signs of having gray hair may also be due to vitamin B deficiency, thyroid disorder, smoking and chemical exposure.
Is having a white hair itchy in the scalp? Why do others say like that? I wonder why because in my case I didn't feel it. Just a thought.