Is it all genetic?

Is it all genetic?

How early we gray is determined by our genes, or more specifically, the family code for “turning off” the metabolism of melanocytes (melanin-producing cells). But the genetic connection isn’t exactly clear. While early graying may cluster in some families, scientists have not been able to attribute it to a single gene or a common gene. And because there are infinite individual variations, we might as well look to other contributing causes. You’ll find these in the next section.