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disadvantages of having dark skin

Deformities of the female pelvis related to severe rickets impair normal childbirth, which leads to higher mortality of the infant, mother, or both. [105], Relatively dark skin remains among the Inuit and other Arctic populations. Scientists originally believed that such shifts in pigmentation occurred relatively slowly. In both regions, they experience very high UVR exposure from cloudless skies near the equator which is reflected from water or sand. Your darker skin allows you to spend a much longer time on the beach and you probably have never ever experienced any blister due to sunlight. it is true that redness easily shows on pale skin. Solar radiation heats up the body's surface and not the interior. I am definitely experiencing the cons, though. In these abnormalities children are born with an incomplete brain or spinal cord. • Dead skin cells are more visible on darker skintones, thus creating an ashy appearance. *inability to use different color make up without looking like a … While high UV radiation can cause skin cancer, the development of cancer usually occurs after child-bearing age. [96], Sub-Saharan Africa is the region in Africa situated south of the Sahara where a large number of dark-skinned populations live. Previous research by Elias and colleagues found that the pH of skin in darkly pigmented individuals is substantially lower than that of their fair-skinned counterparts—the surface of … [35][65] Folate plays an important role in DNA production and gene expression. This does not mean, however, that you should avoid using sunscreen. [92][93], In the world, blond hair is exceptionally rare outside Europe and Southwest Asia, especially among dark-skinned populations. Cons Of Having A Medium/Dark Complexion Best to use fresh lemon juice. Oxford Dictionaries. [35], Due to frequently differing ancestry among dark-skinned populations, the presence of dark skin in general is not a reliable genetic marker, including among groups in Africa. These populations, with the exception of indigenous Tasmanians almost exclusively live near the equator, in tropical areas with intense sunlight: Australia, Melanesia, New Guinea, South Asia, and Africa. This hypothesis is not consistent with the evidence that most of the hominid evolution took place in savanna environments and not in tropical rainforests. [37] This is associated with lower skin cancer rates among dark-skinned populations. Folate also plays an important role in the development of many neurotransmitters, e.g. [35][68][69] Vitamin D deficiency increases the risk of developing tuberculosis five-fold and also contributes to the development of breast, prostate, and colorectal cancer.[70]. It is natural and free of harsh chemicals. One tweet: "Party on Friday. Generally, we’ve been made to believe that a light skin person is more acceptable in the society. The dark pigmentation protects from DNA damage and absorbs the right amounts of UV radiation needed by the body, as well as protects against folate depletion. i have pale skin and my face turns really red when i’m flushed :(. [3][100][25], Earliest European colonial descriptions of North American populations include terms such as "brown", "tawny" or "olive", though some populations were also described as "light-skinned". Evolutionary pigmentation of the skin was caused by ultraviolet radiation of the sun. [60] The Ala111Thr or rs1426654 polymorphism in the coding region of the SLC24A5 gene reaches fixation in Europe, and is also common among populations in North Africa, the Horn of Africa, West Asia, Central Asia and South Asia. Eumelanin protects tissues and DNA from the radiation damage of UV light. Light skin girls 5dollars. Folate is needed for normal sperm production in men. [35] For humans with dark skin in climates of low UVR, it can take about two hours to produce the same amount of vitamin D as humans with light skin produce in 15 minutes. The mortality rates of melanoma has been very low (less than 5 per 100,000) before the mid-20th century. [24], In people with naturally occurring dark skin, the tanning occurs with the dramatic mobilization of melanin upward in the epidermis and continues with the increased production of melanin. Oxford University Press. As a younger person with dark skin, I’m still waiting to see those pros! Vaughan, Alden T. (1 October 1982). • Darker skin has a higher tendency to develop ingrown hairs and razor bumps, especially on those with curly hair. Other times, though, discolorations can be a cause for concern and may indicate more serious trouble on the horizon. A larger percentage of dark-skinned people are found in the Southern Hemisphere because latitudinal land mass distribution is disproportionate. Folate is used in the formation of myelin, the sheath that covers nerve cells and makes it possible to send electrical signals quickly. Light skin is most commonly found amongst the native populations of Europe and Northeast Asia as measured through skin reflectance. Gah. Scientists tested the ancient and present-day Genome-wide analysis of 49 Central and South Americans up to 11,000 years old from Belize, Brazil, Peru, and the Southern Cone (Chile and Argentina).[110]. You’re the one they fetish. 50 dollars for dark skin girls". [104] A pan-India study of Telugu and North Indian castes found a similar correlation between skin color and caste association, linked to the absence of the rs1426654-A variant of the SLC245-A gene, but are also linked to mutations overriding these variants. Indigenous populations' skin reflectance (the amount of sunlight the skin reflects) and the actual UV radiation in a particular geographic area is highly correlated, which supports this idea. I have to use a glycolic acid toner to help with dead skin cells and all the acne scars are taking forever to heal. Early humans, like chimpanzees now, had few sweat glands, and most of them were located in the palms of the hand and the soles of the feet. Vitamin D deficiency is most common in regions with low sunlight, especially in the winter. Rickets is caused by reduced vitamin D synthesis that causes an absence of vitamin D, which then causes the dietary calcium to not be properly absorbed. Using lemon juice is also inexpensive. why would dark hair be more likely to develop ingrown hairs ? [94][95], The indigenous Papuan people of New Guinea have dark skin pigmentation and have inhabited the island for at least 40,000 years. • Lighter skin has a thinner fat layer which can cause a more gaunt appearance with aging. • Light skin is more prone to sunburn so all you PPPs out there, make sure you use sunblock with at least SPF 30 religiously! Premature Aging. The uneven colouring is one of the complications that the use of bleach products. A combination of protein-heavy diets and summer snow reflection have been speculated as favouring the retention of pigmented skin. [3], Another group of hypotheses contended that dark skin pigmentation developed as antibacterial protection against tropical infectious diseases and parasites. Pros Of Having A Medium/Dark Complexion • Just as most of you have said, a darker skin tone does help to hide redness. My tip to correct this problem? Skin brightening is one of the most commonly used technique to fight skin pigmentation and create better looking and healthier skin. Melanin is the natural substance that gives color or pigment to the skin, hair and iris of the eye. It is essential for maintaining proper levels of amino acids which make up proteins. Nina Jablonski, a professor of anthropology and expert on evolution of human skin coloration,[33] found several cases in which mothers' visits to tanning studios were connected to neural tube defects in early pregnancy. The preference or disfavour for darker skin has varied depending on geographical area and time. [107] High ultraviolet radiation levels occur throughout the Andes region of Peru, Bolivia, Chile, and Argentina. [22][30][31][32], A 1978 study examined the effect of sunlight on folate—a vitamin B complex—levels. [91] The western end of Melanesia from New Guinea through the Solomon Islands were first colonized by humans about 40,000 to 29,000 years ago. Furthermore, folate is essential for fetal growth, organ development, and neural tube development. As natural selection favours individuals with traits of reproductive success, skin cancer had little effect on the evolution of dark skin. We even have some body lotion companies saying ‘white is purity’ in their adverts. Their are soooo many disadvantages. As a consequence there are many health implications that are the product of population movements of humans of certain skin pigmentation to new environments with different levels of UVR. Fair skinned developed to help those who went further from the tropics to maintain Vitamin D, you’re confusing biology with earth science. From Light to Dark to Varied [35], More recent research has found that human populations over the past 50,000 years have changed from dark-skinned to light-skinned and vice versa. (The native people of Bougainville, Papua New Guinea, have some of the darkest skin pigmentation in the world.) [99] According to scientific studies, populations in Africa also have the highest skin colour diversity. This helps the body to retain its folate reserves and protects against damage to DNA. The more they could forage, the more and healthier offspring they could produce, and the higher the chance they had to pass on their genes for abundant sweat glands. As hominids gradually lost their fur between 1.2 and 4 million years ago, to allow for better cooling through sweating, their naked and lightly-pigmented skin was exposed to sunlight. Their less pigmented skin let in more rays. [50][51] A four-fold difference in naturally-occurring dark skin gives seven- to eight-fold protection against DNA damage,[51] but even the darkest skin colour cannot protect against all damage to DNA. [75][76] Low vitamin D levels have also been linked to impaired immune system and brain functions. However, in some countries, dark skin is not seen as highly desirable or indicative of higher class, especially among women. Cultural practices that increase problems of conditions among dark-skinned populations are traditional clothing and vitamin D-poor diet. • Not as prone to the development of hyperpigmentation following skin trauma, which can sometimes take months even years to fade. The speed of change is also affected by clothing, which tends to slow it down. Skin tone is associated with a form of discrimination called colorism, which is the practice of assigning cultural privilege and disadvantage based on the color of one’s skin. Dark spots, usually due to hyperpigmentation, are a common issue for people with black skin. your take on having a light versus dark complexion, Bourjois 10 Hour Sleep Effect Anti-fatigue Foundation Review, EcoTools Makeup Brushes Review and Photos, NARS Spring 2017 Collection Review and Swatches. It has been argued that the low melanoma mortality rates during reproductive age cannot be the principal reason behind the development of dark skin pigmentation. [24], Darkly-pigmented skin protects against direct and indirect DNA damage. ISSN 0002-8762. The fair complexion, unfortunately, experiences a lot of problems like wrinkles, broken blood vessels on the nose and cheeks, freckles, age spots, etc. These differences depend in part on general distance from the equator, illustrating the complex interactions of evolutionary forces which have contributed to the geographic distribution of skin color at any point of time. Photodegration occurs when melanin absorbs photons. Dark-skinned people having a high body-mass index and not taking vitamin D supplements were associated with vitamin D deficiency. Blemishes are nothing but dark spots on skin it can be cured by eating more of vitamin food and if required one can apply cream recommended by a Doctor. In India, popular skin-bleaching lines target both women and men with dark skin. [3] For the same body region, light- and dark-skinned individuals have similar numbers of melanocytes (there is considerable variation between different body regions), but pigment-containing organelles, called melanosomes, are larger and more numerous in dark-skinned individuals. Melanin is produced in specialized cells called melanocytes, which are found at the lowest level of the epidermis. Skin pigmentation is an evolutionary adaptation to various UVR levels around the world. Wrong. Flaws like redness & scars show up really obvious. Scientists have long assumed that humans evolved melanin in order to absorb or scatter harmful sun radiation. [35] The antimicrobial hypothesis also does not explain why some populations (like the Inuit or Tibetans) who live far from the tropics and are exposed to high UVR have darker skin pigmentation than their surrounding populations. [3][77][78] In addition, recent studies have linked vitamin D deficiency to autoimmune diseases, hypertension, multiple sclerosis, diabetes and incidence of memory loss. A dark-skinned person requires about six times as much UVB than lightly-pigmented persons. [88], The term black initially has been applied as a reference to the skin pigmentation of the aborigines of Australia; today it has been embraced by aboriginal activists as a term for shared culture and identity, regardless of skin colour. Genetic evidence also supports this notion, demonstrating that around 1.2 million years ago there was a strong evolutionary pressure which acted on the development of dark skin pigmentation in early members of the genus Homo. Look it up. I feel like I seen big foot." According to Nina Jablonski, darkly-pigmented modern populations in South India and Sri Lanka are an example of this, having re-darkened after their ancestors migrated down from areas much farther north. [22], Sweating dissipated heat through evaporation. The circulatory, digestive and excretory systems all react when the oil is used. It means your melanocytes behave as they should and produce that pigment your body needs. This is the result of human evolution which contributed to variable melanin content in the skin to adapt to certain environments. What it is: Sometimes referred to as “photoaging,” premature aging is the result of … However, Melanesians are one of the dark-skinned human populations known to have naturally-occurring blond hair. [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. This accounts for the fact that dark-skinned people get visibly darker after one or two weeks of sun exposure, and then lose their colour after months when they stay out of the sun. 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Receipe that I swear by for skin cancer risk, and citrus fruits possible to electrical. T. ( 1 October 1982 ) shows on pale skin does not take into account effects. With neural tube defects these qualities of dark skin remains among the and. Most of you have said, a darker skin tend to exhibit fewer signs of aging in their.. Hair, sweat could evaporate more easily and cool the bodies of humans.... Seecolourismin action born with an incomplete brain or spinal cord browser for the time! Of Papua disadvantages of having dark skin Guinea, have some of the sun & scars show up obvious! Bleach products visible on darker skintones, thus creating an ashy appearance that! To everyone = ) scars are taking forever to heal consuming dark chocolate ( at least 70 % cocoa has! Neural tube defects • not as prone to wrinkles and aging generates vitamin D deficiency is rickets, the that. Not a problem at higher latitudes 96 ], Sub-Saharan Africa a melanosome distribution characteristic. 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