The most authoritative answer in 2024
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Maya Lewis——Studied at the University of Cambridge, Lives in London.
As a subject matter expert in biology and aging, I can explain the biological process behind the development of gray hair.
Gray hair is a natural part of the aging process and is caused by the gradual decline in the activity of cells known as melanocytes, which are responsible for producing the pigment melanin that gives hair its color. As we age, these cells produce less melanin, and the hair becomes lighter in color, eventually turning gray or white. This process can be influenced by various factors, including genetics, stress, illness, and certain medications.
In addition to aging, premature graying can occur due to genetic predisposition or other health-related conditions. It's also worth noting that while gray hair is often associated with aging, it is not a direct indicator of a person's health or vitality.
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Benjamin White——Studied at the University of Tokyo, Lives in Tokyo, Japan.
As we get older, the pigment cells in our hair follicles gradually die. When there are fewer pigment cells in a hair follicle, that strand of hair will no longer contain as much melanin and will become a more transparent color �� like gray, silver, or white �� as it grows.read more >>+119962023-04-07 14:04:57
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