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White hair in a person's beard is caused by a decrease in melanin production, the pigment responsible for hair color. As people age, their hair follicles produce less melanin, resulting in the appearance of white or gray hair.

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6mo ago

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What causes white hair with black roots to appear?

White hair with black roots can appear due to a decrease in melanin production in the hair follicles as a person ages. Melanin is the pigment that gives hair its color, and when production decreases, the hair may turn white while the roots remain dark.


Do eyes turn white after death, and if so, what causes this change in color?

Yes, eyes can appear to turn white after death due to a process called postmortem changes. This change in color is caused by the loss of blood circulation and the breakdown of tissues in the eyes, which can make the normally colored parts of the eye, such as the iris and sclera, appear white.


What causes white hair with brown roots to appear in some individuals?

White hair with brown roots can occur in some individuals due to a decrease in melanin production in the hair follicles as they age. Melanin is the pigment responsible for hair color, and as its production decreases, the hair may appear white while new hair growth from the roots retains some melanin, resulting in brown roots.


Can people have white eyes without being blind?

No, humans cannot have completely white eyes without a condition affecting the eye that causes blindness. The white part of the eye, known as the sclera, can appear very white due to conditions like albinism or scleral icterus, but complete whiteness is not a normal or healthy eye appearance.


Why is it that your hair is going gray?

Hair turns gray as a natural part of aging due to a decrease in melanin production, the pigment that gives hair its color. This decrease in melanin causes hair to appear gray or white.