The same thing happens with stem cells as we get older, when it’s harder for us to move. They quickly become trapped in an area called the protrusion of the hair follicle. As a result, the hair continues to grow, but becomes gray. And as we get older, more stem cells fall into this trap.
However, scientists at the Grossman School of Medicine hope they can figure out how to release these stem cells. To do this, they conduct experiments on mice.
But there are other assumptions about the appearance of gray hair in humans. For example, it is believed that genetics, malnutrition and stress may be to blame.
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