American scientists have come to the conclusion that grey hair is a sign of health. This link has quite a different trend than that laid down in the minds of most people.
Scientists believe that gray (not early, up to 30 years) is a sign of excellent health. Old age is associated with oxidative processes. This reduces the level of antioxidants in the blood, which normally protects cells.
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It turned out that the gray hair growing relatively faster at higher levels of glutathione. This compound has strong antioxidant properties and helps protect the body from aging. Accordingly, this symptom is not associated with the presence of the fading process of the body.