![](https://www.thebrighterside.news/uploads/2024/04/95ac29_5ed624ba246b42778baa420c27f578f6mv2.webp?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
Gray hair
HealthScientists discovered why hair turns gray as we age
As hair ages, sheds, and then grows back, increasing numbers of McSCs get stuck in the stem cell compartment called the hair follicle bulge.
Joseph Shavit![](https://www.thebrighterside.news/uploads/2024/08/grey-hair-1.webp?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
![](https://www.thebrighterside.news/uploads/2024/04/95ac29_5ed624ba246b42778baa420c27f578f6mv2.webp?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
As hair ages, sheds, and then grows back, increasing numbers of McSCs get stuck in the stem cell compartment called the hair follicle bulge.
Joseph Shavit