Were do freckles come from?Asked by: Ms. Sienna Becker
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Freckles are small brown spots on your skin, often in areas that get sun exposure. In most cases, freckles are harmless. They form as a result of overproduction of melanin, which is responsible for skin and hair color (pigmentation). Overall, freckles come from ultraviolet (UV) radiation stimulation.View full answer
Subsequently, question is, Where do freckles come from genetically?
The variants of the MC1R gene that are linked with freckles started to emerge in the human genotype when humans started to leave Africa. The variant Val92Met arose somewhere between 250,000 and 100,000 years ago, long enough for this gene to be carried by humans into central Asia.
Additionally, What ethnicity did freckles come from?. Freckles – they are an immediately recognisable “Irish” trait, up there with blue eyes and red hair. And they have been around for a long time: fossils found recently in China show that even some dinosaurs had freckled colouring.
Moreover, Who is most likely to have freckles?
Freckles often show up during childhood, and you may continue to get more until you're in your 20s. People with fair skin or red hair are most likely to have them. There are two types of freckles: ephelides and solar lentigines.
How do you avoid getting freckles?
For people who want to avoid freckles, prevention is key. It's also possible to prevent freckles while speeding up their disappearance. The American Academy of Dermatology recommends using a water-resistant sunscreen with an SPF of at least 30 on your skin. Wait 15 minutes before heading outdoors for full protection.
Most people with freckles usually start to see them come out around age 2 or 3 and continue into young adulthood. Freckles are from the sun – almost like a modified tan. Most people with freckles will notice that they fade in the wintertime when there is less sun exposure.
Are freckles permanent? Some freckles diminish and disappear over time. Others are always present but may fade in winter and be most prominent in summer, when UV exposure is higher. As a general rule, most freckles will tend to last for months or years once they develop.
Freckles occur in people with heritage from around the world. Because they're often seen in people with red hair, freckles are commonly associated with Ireland and Scotland, where this hair color is common as well. But anyone can get freckles.
Genetics and sun exposure are the primary causes of freckles. Some people are more likely to get freckles than others, depending on their genes and skin type. If a person is genetically more likely to develop freckles, exposure to sunlight can make them appear.
Although freckles are hereditary, they are activated by sun exposure. If someone that has the freckle gene (MC1R), they must spend time in the sun in order to produce freckles. A person without the freckles genes will not produce freckles regardless of if they are in the sun or not.
Genetics of Freckles
It doesn't matter if your parents themselves had freckles. The gene that causes freckles merely was not expressed in them, but they were still carrying the gene. It just means that one of the recessive genes -- the ones that don't give people freckles -- won.
Why do freckles form on body areas not exposed to the sun? True freckles almost never occur on covered skin and pose essentially no health risk at all. They are all absolutely harmless. They are not cancerous and generally do not become cancerous.
People with light skin and eyes have less melanin, a chemical in the skin that protects it from sun damage by reflecting and absorbing ultraviolet (UV) rays, but some melanocytes (the melanin-producing cells) make more melanin when exposed to the sun. Instead of tanning evenly, people with less melanin get freckles.
Freckles are beautiful
Some of the world's most beautiful people also enjoy flaunting their freckles, so feel free to do the same.
Freckles tend to run in families. People (especially kids) who have fair complexions are most likely to freckle.
Freckles are caused by sun exposure, and unlike most of your body, your hands are rarely covered by clothing. It's also a common spot people skip when applying sunscreen.
Scratching a mole does not cause skin cancer to develop. Scratching can cause bleeding and infection, microscopic injuries, or an outright wound. There are no documented cases where a person scratching a mole later developed cancer as a result. It's a common misconception that all skin cancers begin as moles.
Freckles are most common in people with fair skin and in those who have red hair. Freckles generally develop in childhood, adolescence or young adulthood, and they may increase in number and distribution during that time.
"Freckle tattoos can cost as little as $80 for a couple of beauty marks, to around $250 or more for a bit more facial coverage.
Freckles are hereditary, so you either have them or don't. If your skin is already freckle-prone, getting some sun will draw more natural freckles out of your skin. If you do not have natural freckles, you can get fake freckles using standard makeup or permanent cosmetic tattooing.
Freckles themselves aren't a sign of damage to the skin. However, people who have freckles are more likely to be sensitive to the sun's ultraviolet rays that cause damage.
Freckles May Fade
Some people have freckles that fade away almost completely in the winter and return in the summer. Other people's freckles don't change much with or without the sun and can be seen year-round. Freckles also tend to fade as people get older.
The MC1R variant gene that gives people red hair generally results in skin that is difficult or impossible to tan. Because of the natural tanning reaction to the sun's ultraviolet light and high amounts of pheomelanin in the skin, freckles are a common but not universal feature of red-haired people.
Dermatological Freckle Treatment
If you are hoping to minimize the appearance of freckles, getting a chemical peel can remove the top layer of skin exposing newer undamaged skin. Therefore, freckles will be less noticeable due to this skin layer's lack of sun damage.
Freckles are actually evidence of a genetic mutation in your “freckle gene.” No, you're not an alien, but when this gene (called the melanocortin one receptor gene) is mutated, you are at greater risk for predisposed skin cancer — both melanoma and non-melanoma types.