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.
Researchers think that the ginger gene, known as MC1R, may cause the temperature-detecting gene to become over-activated, making redheads more sensitive to the cold.
About 1–2% of people of European origin have red hair. Especially female redheads are known to suffer higher pain sensitivity and higher incidence of some disorders, including skin cancer, Parkinson's disease and endometriosis.
In contrast, redheads were more sensitive to cold pain perception (22.6°C [15.1, 26.1] vs. 12.6°C [0, 20], P=0.004), cold pain tolerance (6.0°C [0, 9.7] vs. 0.0°C [0.0, 2.0], P=0.001), and heat pain (46.3°C [45.7, 47.5] vs.
They easily detect changes in hot and cold temperatures. They may be less sensitive to electric shock, needle pricks and stinging pain on the skin.
The skin of a redhead is thinner compared to others and is derived from the ectoderm. Teeth enamel is also derived from the ectoderm and thus is thinner than usual. Since the enamel coating is thin, the inner layer of tooth-dentin is more visible and offers a yellowish appearance.
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.
Sex Researcher Professor Dr Werner Habermehl said: “The sex lives of women with red hair were clearly more active than those with other hair colour, with more partners and having sex more often than the average. The research shows that the fiery redhead certainly lives up to her reputation.”
Some evidence suggests redheaded adults often appear older than their actual age. For example, one study published in 2016 in Current Biology found that adults who carry two copies of the MC1R gene variant are more likely to look two years older than other people their age.
According to Health Magazine, redheads can produce their own vitamin D when exposed to low levels of light. 4. You may not need as much pain medication. The gene responsible for red hair (MC1R) also releases a hormone that is similar to endorphins which limit the feeling of pain.
Lifespan: up to 20 years in captivity, 5-10 years in the wild.
First up, studies have found that people with ginger hair are better in bed. This is because of a specific gene connected to redheads – the MC1R gene. This gene makes the individual more sensitive to touch than people with other hair colours.
A McGill University study found that redheads could handle more electric shocks than those with different coloured hair. Other research discovered that gingers are better at handling stabbing or sharp pain.
Other Sacharov redlines: "The connection between red hair and a fiery temperament may be more than just an old wives' tale. An Israeli psychiatrist reported that redheaded children are three to four times more likely than others to develop hyperactivity.
Contrary to what many people assume, redheads did not originate in Scandinavia, Scotland or Ireland, but in central Asia. Their coloring is due to a mutation in the MC1R gene that fails to produce sun-protective, skin-darkening eumelanin and instead causes pale skin, freckles and red hair.
Someone with red hair has two copies of the MC1R gene, receiving one from each parent. The gene also carries a certain mutation in most people who have red hair. It's this variant that has been identified as playing a role in why redheads may respond to pain drugs differently than others.
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.
Eumelanin ranges from brown to black in colour. 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.
Basic beige, brown, and black are the best go-to base colors for red hair. They never fail to flatter. Gold falls into this area, so wear it often… jewelry too!
All redheads should have green in their closet— most shades are instantly flattering. Olive green, kelly green, and emerald jeweled-tones all make red hair dazzle. Just be sure to stay away from yellowy-greens and always go for more of the saturated greens.
Colliss Harvey's research found that redheaded individuals have higher levels of vitamin D, which is a source of strength. She asserts that this has been a contributing factor in stereotypes surrounding the foxy minority, which make up 2% of the global population.
Some studies indicate that redheads are more prone to illness because they prefer to keep out of the sun and so lack vitamin D, or because their ability to absorb the vitamin is less efficient.
Final Thoughts on Redheads and Alcohol Tolerance
There's not enough evidence to claim redheads have a higher tolerance to alcohol than other people. However, several social and genetic factors (including the MC1R mutation) may lead to a perception that they have a high tolerance and a predisposition to alcoholism.
11. Redheads can produce their own Vitamin D. As they can't sufficiently absorb Vitamin D (it's down to their lower melanin-concentration), redheads internally produce their own Vitamin D when they're exposed to low light conditions.