What makes hair turn gray rapidly at 60?

Age & genetics: Early. 1. Genetics. 2. Age 3. Stressors. The age of initial graying is largely a matter of genetics. However stressors such as nutritional deficiencies, traumatic head injuries, low vitamin B levels, zinc deficiency, severe illness, surgery and marked emotional stress may impact earlier depigmentation in people who are already predisposed to gray hair. In general – genetics plays the biggest role.