Short of sentencing it to dye, the jury is still out on what to do about graying hair. Experts say little research has been done on the topic, but there are some clues as to how lustrous locks lose their color. First of all, blame your parents.
Scientists say genetics probably plays a role in the graying process.
This could explain why some people encounter their first silver strand in their 20s and 30s while others are lucky enough to avoid it until their 70s or 80s. Family predisposition, however, doesn't explain all cases. A person's diet may have something to do with it. If you're not going to feed your body well on the inside, what's coming out is not going to be high quality. Bonci says the type of foods people eat can affect the shine and texture of their hair, but she is unsure of the exact part nutrients play in hair graying.