Solar radiation heats up the body's surface and not the interior. [5][6][7][8], The evolution of dark skin is believed to have begun around 1.2 million years ago,[9] in light-skinned early hominid species after they moved from the equatorial rainforest to the sunny savannas. [24][44][45][46][47] However, these cancer types usually affect people at the end or after their reproductive career and could have not been the evolutionary reason behind the development of dark skin pigmentation. [32], Studies have found that even serious sunburns could not affect sweat gland function and thermoregulation. She also found that folate was crucial to sperm development; some male contraception drugs are based on folate inhibition. Serum folate is broken down by UV radiation or alcohol consumption. Deformities of the female pelvis related to severe rickets impair normal childbirth, which leads to higher mortality of the infant, mother, or both. [103] Several genetic surveys of South Asian populations in different regions have found a weak negative correlation between social status and skin darkness, represented by the melanin index. The Evidence is Cut in Stone: A Compelling Argument for Lost High Technology in Ancient Egypt, Beaver's teeth 'used to carve the oldest wooden statue in the world’. [3][16], Dark-skinned people who live in high latitudes with mild sunlight are at an increased risk—especially in the winter—of vitamin D deficiency. This is mainly because of the weather conditions in South Asia—higher UV indices are in the south. Additionally, this symbol is also used by various institutions in the country, both public and private. [100] High levels of skin colour variation exists between different populations in Sub-Saharan Africa. Our open community is dedicated to digging into the origins of our species on planet earth, and question wherever the discoveries might take us. The goal of Ancient Origins is to highlight recent archaeological discoveries, peer-reviewed academic research and evidence, as well as offering alternative viewpoints and explanations of science, archaeology, mythology, religion and history around the globe. The most prevalent disease to follow vitamin D deficiency is rickets, the softening of bones in children potentially leading to fractures and deformity. [24] The stratum corneum of people with dark or heavily tanned skin is more condensed and contains more cornified cell layers than in lightly-pigmented humans. We seek to retell the story of our beginnings. Isn't that a bust of the governor of Virginia. We’re the only Pop Archaeology site combining scientific research with out-of-the-box perspectives. The study found that even short periods of intense sunlight are able to halve folate levels if someone has light skin. It is becoming clearer that one of the most powerful and paradigm changing effects our developing technologies will have on human culture is that, one day very soon, the ancient suspicions of gurus, shamans, priests, priestesses and oracles and all the other ‘non-scientific’ leaders in history, will be proven to be accurate, in one regard. In fact, over 80 percent of the inhabitants of Estonia and Finland have blue eyes. Blonde and green eyes and Redheads originated in Celtic areas. It flourished in the fertile valleys of the world’s longest river - the Nile. [54][55], Data collected from studies on MC1R gene has shown that there is a lack of diversity in dark-skinned African samples in the allele of the gene compared to non-African populations. However, in some countries, dark skin is not seen as highly desirable or indicative of higher class, especially among women. However, researchers have since observed that changes in skin coloration can happen in as little as 100 generations (~2,500 years), with no intermarriage required. Scientists originally believed that such shifts in pigmentation occurred relatively slowly. Some artifacts, even when they were discovered a long time ago are hard to authenticate and some certainly are fakes. Now that being said, it is common practice for us to discuss certainly the options. This hypothesis is not consistent with the evidence that most of the hominid evolution took place in savanna environments and not in tropical rainforests. It was “luck”, however, that they found “scraps of DNA in his ear” stated archaeologists at the museum this week. Rh-Negative Blood: An Exotic Bloodline or Random Mutation? People with naturally-occurring dark skin have melanosomes which are clumped, large and full of eumelanin. Pay attention! Today, darker skin is viewed as fashionable and as a sign of well-being in some societies. Now there’s just one. By the time modern Homo sapiens evolved, all humans were dark-skinned. As a consequence of vitamin D deficiency, they are at a higher risk of developing rickets, numerous types of cancers, and possibly cardiovascular disease and low immune system activity. You submitted several photos and you describe in detail in your question that you had Restylane placed in your tear trough in 2015 and that with time, the…, Eye bag removal or filler? How blue are blue eyes? Dark-skinned people having a high body-mass index and not taking vitamin D supplements were associated with vitamin D deficiency.


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