I accumulated less than a handful of grey / white hairs during some stressful days in graduate school. I looked in the mirror often and couldn't believe that I was "aging".
Now, having finished with school and living a happier, more productive and emotionally intelligent lifestyle, I notice that those white hairs on my head have disappeared. I haven't made any drastic changes -- my hairstyle is still neither short nor long, I eat sort of poorly but drink a lot of cow milk and unsweetened green tea that's fortified with 200% vitamin C, and I sleep at least eight hours a day.
If grey / white hairs is a sign of stress and aging, does the disappearance of white hairs from my head indicate in some sense that aging is reversible -- primarily by reducing the stress in my life?