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Why redheads have a head start in the health stakes


Actress Julianne Moore

It is not the image classically associated with peak health and fitness.

But scientists have found that ginger hair and a pale skin offer an important advantage in the survival game.

Redheads, it would seem, boast a secret genetic weapon which enables them to fight off certain debilitating and potentially deadly illnesses আরো efficiently than blondes অথবা brunettes.

A pale complexion permits আরো sunlight into the skin, where it encourages the productionof vitamin D. This helps to prevent rickets, a disease which progressively...
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A close-up view of red hair
The pigment pheomelanin gives red hair its distinctive color. Red hair has far আরো of the pigment pheomelanin than it has of the dark pigment eumelanin.

The genetics of red hair, discovered in 1997, appear to be associated with the melanocortin-1 receptor (MC1R), which is found on chromosome 16. Red hair is associated with fair skin color because of low concentrations of eumelanin throughout the body of those with red hair. This lower melanin-concentration confers the advantage that a sufficient concentration of important Vitamin D can be produced under low light...
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Red hair of pathological origin

Most red hair is caused দ্বারা the MC1R gene and is non-pathological. However, in rare cases red hair can be associated with disease অথবা genetic disorder:
In cases of severe malnutrition, normally dark human hair may turn red অথবা blonde. The condition, part of a syndrome known as kwashiorkor, is a sign of critical starvation caused chiefly দ্বারা protein deficiency, and is common during periods of famine.
One variety of albinism (Type 3, aka rufous albinism), sometimes seen in Africans and inhabitants of New Guinea, results in red hair and red-colored skin.[48]
Red hair is found on people lacking pro-opiomelanocortin.[48][49]
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