The Myth: Stress can turn your hair grey
This has always been a commonly held belief without any proof, but we’re getting closer to understanding it. Researchers from New York University School of Medicine and Baylor College of Medicine published a study in June which provided evidence that stress hormones can contribute to grey hair, via a complicated stem cell mechanism. However, it was a study done in mice and there are likely many other factors that contribute to going grey, like genetics and illness.
The Bottom Line: Possibly True