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Vitiligo (/ ˌ v ɪ t ɪ ˈ l aɪ ɡ oʊ /, vit-il-eye-goh) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. [1] The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure.
So common, in fact, that between 1.5 percent and 33 percent of the population may get melasma between the ages of 20 and 40, according to the the Cleveland Clinic. Still, it can be hard to know ...
For the average adult human, the skin has a surface area of 1.5–2.0 square metres (15–20 sq ft). The thickness of the skin varies considerably over all parts of the body, and between men and women, and young and old. An example is the skin on the forearm, which is on average 1.3 mm in males and 1.26 mm in females. [4]
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Light skin is a human skin color that has a low level of eumelanin pigmentation as an adaptation to environments of low UV radiation. [1] [2] Due to migrations of people in recent centuries, light-skinned populations today are found all over the world.
The three principal anthropometric measures of the upper arm are the upper arm length, the triceps skin fold (TSF), and the mid-upper arm circumference (MUAC). The triceps skin fold is the width of a fold of skin taken over the triceps muscle. It is measured using skinfold calipers.
The use of Botox and other neuromodulators has increased 73 percent overall between 2019 to 2022, according to the American Society of Plastic Surgeons (ASPS), and Gen Zers (those born between ...
About 90% of pregnant women are affected. [ 13 ] A number of additional factors appear to promote the appearance of stretch marks: one study of 324 women, done just after they had given birth, demonstrated that low maternal age, high body mass index , weight gain over 15 kg (33 pounds) and higher neonatal birth weight were independently ...