Gray Hair Can Return To Its Previous Color If Stress Passes

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Gray Hair Can Return To Its Previous Color If Stress Passes
Gray Hair Can Return To Its Previous Color If Stress Passes

Video: Gray Hair Can Return To Its Previous Color If Stress Passes

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Video: Scientists uncover 'new evidence' on how stress can lead to grey hair | ITV News 2023, January
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Gray hair can return to its previous color if stress passes

Hair discoloration under stress is associated with enzymes that can be reversible.

Gray hair can return to its previous color if stress passes
Gray hair can return to its previous color if stress passes

Photo: pixabay.com

Human hair that has turned gray as a result of stress may return to its previous color after the stress has stopped. This was discovered by scientists at the University of Miami, their research is published on bioRxiv, a service for preprints that are awaiting scientific review.

It is well known that stressful events can cause hair graying. But until recently, it was believed that this gray hair is irreversible. In a new study, researchers have tracked how gray hair color returns after stress is removed.

The authors of the scientific work studied hair from the head and other parts of the body of 14 volunteers. A total of 400 hair samples were taken, in which the level of coloring pigments (melanin and not only) and other proteins was analyzed. Scientists found that many hairs that turned gray at the root returned to their original color over time.

Analysis of hair proteins showed that mitochondrial enzymes, which are normally involved in energy metabolism, are overly active in gray hair. The activity of these enzymes increased in response to stress and was associated with a number of changes that occur during aging (including DNA degradation). Lifestyle changes can reverse many of these problems. Based on this, the scientists hypothesized that the absence of stress could help the hair regain its previous color.

The study authors asked participants about the most stressful events of the past year. Based on the average hair growth rate, scientists have identified which specific stresses coincided with the gray hair. For example, one of the participants - a woman of Asian descent - had a gray area 2 centimeters long in her hair. His appearance coincided with her separation from her husband, then the color returned to her hair. Another example - "stressful" gray hair disappeared from a man while on vacation.

Overall, scientists have found evidence that gray hair after stress can completely reverse in four days, but this process usually takes about three months.

The authors believe their study reminds us that aging is not a linear process, some parts of which can be stopped or even reversed. Understanding the processes of hair discoloration could help develop a cure for gray hair in the future.

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