Red hair is a hair color found in one to two percent of the human population, appearing with greater frequency among people of Northern or Northwestern European ancestry and lesser frequency in other populations.
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Red hair is a hair color found in one to two percent of the human population, appearing with greater frequency among people of Northern or Northwestern European ancestry and lesser frequency in other populations.
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Red hair is most commonly found at the northern and western fringes of Europe; it is centred around populations in the British Isles and is particularly associated with the Celtic nations.
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In European culture, before the 20th century, red hair was often seen as a stereotypically Jewish trait: during the Spanish Inquisition, all those with red hair were identified as Jewish.
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Many of the hair samples appear red in color, and one skull from the cemetery had a preserved red moustache.
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Reddish-brown hair is found amongst some Polynesians, and is especially common in some tribes and family groups.
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In Polynesian culture reddish hair has traditionally been seen as a sign of descent from high-ranking ancestors and a mark of rulership.
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Red hair has far more of the pigment pheomelanin than it has of the dark pigment eumelanin.
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Genetics of red hair appear to be associated with the melanocortin-1 receptor, which is found on chromosome 16.
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Red hair is associated with fair skin color because the MC1R mutation results in low concentrations of eumelanin throughout the body.
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Genes responsible for red hair can express themselves to different extents in different people.
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Red hair is caused by a relatively rare recessive allele, the expression of which can skip generations.
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Two studies have demonstrated that people with red hair have different sensitivity to pain to people with other hair colors.
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One study found that people with red hair are more sensitive to thermal pain, while another study concluded that redheads are less sensitive to pain from multiple modalities, including noxious stimuli such as electrically induced pain.
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However, in rare cases red hair can be associated with disease or genetic disorder:.
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In modern times, red hair is subject to fashion trends; celebrities such as Nicole Kidman, Alyson Hannigan, Marcia Cross, Christina Hendricks, Emma Stone and Geri Halliwell can boost sales of red hair dye.
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Sir Arthur Conan Doyle's Sherlock Holmes story "The Red hair-Headed League" involves a man who is asked to become a member of a mysterious group of red-headed people.
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Those whose hair is red, of a certain peculiar shade, are unmistakably vampires.
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In Medieval Italy and Spain, red hair was associated with the heretical nature of Jews and their rejection of Jesus, and thus Judas Iscariot was commonly depicted as red-haired in Italian and Spanish art.
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However, children with red hair are often themselves targeted by bullies; "Somebody with ginger hair will stand out from the crowd, " says anti-bullying expert Louise Burfitt-Dons.
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Early artistic representations of Mary Magdalene usually depict her as having long flowing red hair, although a description of her hair color was never mentioned in the Bible, and it is possible the color is an effect caused by pigment degradation in the ancient paint.
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