Gray Hair From Stress Can Go Away

Scientists found that some hair that turned gray when a person was under stress returned to its original color when the person became relaxed.Source: Natasha Brazil/Unsplash

Scientists knew that being under stress can turn hair gray. But until now, there was no evidence that you can get your normal-colored hair strands back when you’re more relaxed.. These signals seem to change proteins under the roots, and those proteins harden once the hair grows out of the scalp. The team’s first step was to identify proteins that show if a strand was gray, white, or colored—at any point in its history. There turned out to be 323 proteins in all.stressfulLooking at the proteins in the hair strands at different points allowed the team to see that some hairs that were now brown or another color had been gray or white earlier in the year. They also could match the changes in the proteins in the strands to the volunteers’ reports.

The changes may happen quickly and on hair anywhere on the body. One woman went on a trip for two weeks and regained five hair strands with color. How could the scientists match the colors and timing so closely? They knew that hair grows about a centimeter a month. Not everyone showed evidence of regaining color, and it didn’t happen in any volunteers over the age of 40 in this study. More research will tell us if de-stressing can reverse hair loss later in life.Stem cells are cells that can turn into other cells that are needed. When your hair regains its color, stem cells called melanocytes are probably at work. We don’t know whether people have only a set number of melanocytes or can be replenished by stem cells from another part of the body.

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