Our Ask Tony and Tucker question comes from Diana Tyree. She writes, "My 6-year-old asked me, 'Why do people get silver hair when they get older?' Why is it that hair turns gray on some people? I have heard it means you have had a hard life? Is that true?"
Diana also says she is a redhead, and has never seemed to notice other redheads with gray hairs - she says she thinks people who have darker hair seem more likely to go gray.