Pheomelanin ranges from red to pink. Redheads have much more pheomelanin than eumelanin in their bodies. That's why their skin tone is often so light, and why their hair is often reddish.
For starters, redheads typically have fair complexions and are more susceptible to sunburn and skin cancer. Some people with red hair also experience pain differently, or they can look older than they are. At the same time, redheads are better at manufacturing vitamin D and have a lower prostate cancer risk.
Having red hair isn't the only thing that makes some redheads unique. They are also more likely to be left handed. Both characteristics come from recessive genes, which like to come in pairs. Redheads probably won't go grey.
Previous studies had shown that redheads inherit two versions of the MC1R gene that leads to red hair – one from their mum and one from their dad. Although almost everyone with red hair has two copies of the red-haired version of MC1R, not everyone carrying two red-haired versions is a redhead.
While scientific studies found no evidence to support these views, some physical traits are indeed characteristic of redheads: they have lower pain tolerance and require larger doses of painkillers, and even anesthetics.
The DNA for blonde hair and red hair are about equally strong. People who have DNA for both often have strawberry blonde hair.
Having red hair and blue eyes is the rarest hair/eye color combination possible. The odds of a person having both of those recessive traits is around 0.17%. Instead, most redheads have brown, hazel or green eyes, according to Medical Daily.
Red hair has long been associated with Celtic people. Both the ancient Greeks and Romans described the Celts as redheads. The Romans extended the description to Germanic people, at least those they most frequently encountered in southern and western Germany. It still holds true today.
Lifespan: up to 20 years in captivity, 5-10 years in the wild. Special Adaptations: Males have an elaborate courtship dance where they throw back their heads, almost touching their tail!
One of the many facts about redheads is that their hair will never turn grey. The pigment in their hair that causes it to be red will just fade over time, causing their hair to turn blonde or white, but never grey.
Throughout history, artists from Sandro Botticelli to Dante Gabriel Rossetti have mined the potent symbolism of red hair to alternately suggest promiscuity, sensuality, deviousness, and—above all—otherness for centuries.
We redheads are extra confident because we learn very early in life how to deal with being different. This unique trait provides extra confidence and truly captivates everyone.
Key Takeaways. Humans and mice with red hair have a different tolerance for pain because their skin's pigment-producing cells lack the function of a certain receptor. Lack of this receptor function causes changes that tip the balance between pain sensitivity and pain tolerance.
Redheads (men and women) differ chemically from the rest of us in that they can't make melanin (the brown pigment in freckles and tans). Instead, they make pheomelanin, which is reddish. Their sweat doesn't differ in composition from anyone else's, so there is no reason for them to smell different.
And the statistics bear that stereotype out. Ireland has the highest per capita percentage of redheads in the world -- anywhere from 10 to 30 percent, according to Eupedia, a website that explores European genetics and ancestry. They are almost equally prevalent in Scotland and other pockets of Celtic pride.
Ireland has the highest number of red-haired people per capita in the world, with the percentage of those with red hair at around 10%. Great Britain also has a high percentage of people with red hair.
Most redheads have red hair at birth, but did you know it's possible to become a redhead as you age? Red hair is carried in our genes.
Research has shown that people with red hair perceive pain differently than others. They may be more sensitive to certain types of pain and can require higher doses of some pain-killing medications. However, studies suggest that their general pain tolerance may be higher.
The rarest hair and eye color combination is red hair with blue eyes, occurring in less than 1% of the global population. This statistic is a powerful reminder of the uniqueness of the red hair and blue eyes combination.
Colliss Harvey's research found that redheaded individuals have higher levels of vitamin D, which is a source of strength.
Redheads might have less damage/signs of aging
This means that there is a reduced risk of sun damage and early signs of aging in the skin of redheads. This means our skin stays youthful for longer, helping us appear younger.
A study headed by Dr. Edwin Liem at the University of Louisville in Kentucky found that redheads are more sensitive to hot and cold, and are hurt by the cold at temperatures nearly 11 degrees Fahrenheit warmer than others.
Susceptible to sunburn — and melanoma
While it makes redheads more susceptible to sunburn, that very sensitivity to ultraviolet rays also allows their bodies to produce more vitamin D, which is essential to bone development and good health.