What are some traits of redheads?

Written by misty barton
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What are some traits of redheads?
Only 2 per cent of the American population has naturally red hair. (Jupiterimages/Pixland/Getty Images)

It was once believed that a recessive genetic trait caused redheadedness, but recent genetic research has revealed that it is actually called by a genetic mutation. Redheads have a mutation of the MC1R.3 gene, which causes their bodies to overproduce pheomelanin. Pheomelanin is a yellow-red pigment that affects the colour of the hair and skin. Redheads also have several other traits in common, which may be directly linked to their genetic mutation.

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Sensation

Edwin Liem, an anaesthesiologist at the University of Louisville, found that redheads have a significantly lower pain tolerance than their counterparts with other hair colours. He found that redheads require between 20 per cent and 30 per cent more anaesthesia during surgery to achieve the same level of sedation as a brunette or blonde. Redheads also feel pain more intensely and are more sensitive to any physical contact, because their skin has more nerve endings per square inch than other people do. Redheads begin to feel pain as a result of chilled skin when the temperature around them drops below 6.11 degrees C. This contrasts with brunettes, who can tolerate temperatures nearing freezing. According to "New York Times" writer Tara Parker-Pope, redheads are also twice as likely to avoid the dentist and experience more dental-work anxieties than others do, because of their low pain tolerance.

Anaesthesia

For decades, anesthesiologists have held the common belief that redheads are harder to sedate. That was proven correct by Dr. Liem, who in his August 2004 study "Anesthetic Requirement Is Increased in Redheads," found that redheads require between 15 per cent and 20 per cent more anaesthesia to experience the same level of sedation as those with other hair tones. Specifically, his research showed that redheads have a resistance to lidocaine and other injectable anesthetics.

Skin Type

Redheads tend to have a very light and very pink skin tone. This is directly related to the increased levels of yellow-red pigment they are producing. As a result, their skin is much more sensitive to UV radiation. They commonly burn when in the sun without appropriate protection and develop freckles on all exposed skin. They are predisposed to skin cancers. Anecdotal evidence also suggest that redheads bruise more easily than their darker-haired peers.

Sexuality

Accordingto the "LA Times" and the Daily Mail Online, a 2006 study by Hamburg Sex Research Professor Dr. Werner Habermehl found that women with red hair have significantly more sex than other women. Similarly, a 2009 survey, published in "The Telegraph" in England, found that redheaded women had sex an average of three times per week, while blondes and brunettes had sex twice a week.

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