In this group of people from India, kids are starting to go gray much earlier than usual—some as young as 5—and on average by age 10, which is way before most other people start graying, suggesting their hair turns gray for a different reason.

This study found that some Indian kids started going gray as young as 5 years old, and on average at 10 years old — which is much earlier than most people elsewhere, so it supports the claim that this group has a unique pattern of early graying.