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  2. Greying of hair - Wikipedia

    en.wikipedia.org/wiki/Greying_of_hair

    Grey or white hair is not caused by a true grey or white pigment, but is due to a lack of pigmentation and melanin. The clear hairs appear as grey or white because of the way light is reflected from the hairs. The change in hair colour occurs when melanin ceases to be produced in the hair root and new hairs grow in without pigment.

  3. Human hair color - Wikipedia

    en.wikipedia.org/wiki/Human_hair_color

    Gray or white hair is not caused by a true gray or white pigment, but is due to a lack of pigmentation and melanin. The clear hairs appear as gray or white because of the way light is reflected from the hairs. Gray hair color typically occurs naturally as people age (see aging or achromotrichia below).

  4. Premature greying of hair - Wikipedia

    en.wikipedia.org/wiki/Premature_greying_of_hair

    Cause of greying is incompletely understood. It is a complex multi-factorial process mainly considered to be an interplay of nutritional, genetic and environmental factors. Stress causing over-activation of the sympathetic nervous system increases noradrenaline release in hair follicles .

  5. Help! Why Do I Have Gray Hair in My 20s?!? - AOL

    www.aol.com/help-why-gray-hair-20s-162500136.html

    What causes gray hair in your 20s? Gray hair is an inevitable part of life; however, when your hair actually begins to start graying is determined by a slew of factors. "Gray hair in your 20s can ...

  6. Promising New Study Says Gray Hair May Be Reversible - AOL

    www.aol.com/lifestyle/could-gray-hair-reversible...

    Here, experts if gray hair could be reversible. The reason for hair turning gray may have to do with stem cells and hair follicles, a new study finds. Here, experts if gray hair could be reversible.

  7. 6 Ways to Prevent Gray Hair - AOL

    www.aol.com/lifestyle/6-ways-prevent-gray-hair...

    For instance, a 2020 study of 50 people with gray hair between ages 25 and 30 linked gray hair with oxidative stress. Personal stressors can cause oxidative stress in the body, which occurs when ...

  8. Waardenburg syndrome - Wikipedia

    en.wikipedia.org/wiki/Waardenburg_syndrome

    Mutations in a single copy of SNAI2 have also been found to cause patches of hair depigmentation without any other symptoms. [25] Type 2E is caused by an autosomal dominant mutation in the gene SOX10. [4] Rarely, a mutation in a gene other than those currently known may be responsible for a Waardenburg syndrome with features of type 2.

  9. Can You Reverse Gray Hair? New Study Hints It May Be ... - AOL

    www.aol.com/lifestyle/reverse-gray-hair-study...

    Luckily, recent research has discovered why and how hair starts going gray—and it also may lay the framework for reversing it down the road. Bear in mind that these are early findings, and it ...