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  2. Sex differences in human physiology - Wikipedia

    en.wikipedia.org/wiki/Sex_differences_in_human...

    In lighter-complected humans, male skin is visibly redder; this is due to greater blood volume rather than melanin. [48] [49] Conversely, females are lighter-skinned than males in some studied human populations. [50] [51] The differences in color are mainly caused by higher levels of melanin in the skin, hair and eyes in males. [52] [53]

  3. Von Luschan's chromatic scale - Wikipedia

    en.wikipedia.org/wiki/Von_Luschan's_chromatic_scale

    Skin colors according to von Luschan's chromatic scale. Von Luschan's chromatic scale (VLS) is a method of classifying skin color. It is also called the von Luschan scale or von Luschan's scale. It is named after its inventor, Felix von Luschan. The equipment consisted of 36 opaque glass tiles which were compared to the subject's skin, ideally ...

  4. Human skin color - Wikipedia

    en.wikipedia.org/wiki/Human_skin_color

    This is an accepted version of this page This is the latest accepted revision, reviewed on 28 December 2024. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...

  5. Albinism in humans - Wikipedia

    en.wikipedia.org/wiki/Albinism_in_humans

    Albinism is a congenital condition characterized in humans by the partial or complete absence of pigment in the skin, hair and eyes. Albinism is associated with a number of vision defects, such as photophobia, nystagmus, and amblyopia. Lack of skin pigmentation makes for more susceptibility to sunburn and skin cancers.

  6. Male infertility - Wikipedia

    en.wikipedia.org/wiki/Male_infertility

    This decline in male fertility is the subject of research and debate. Proposed explanations include lifestyle factors, such as changes in diet and physical activity levels, and increased exposure to endocrine disrupting chemicals , such as those found in plastics and pesticides.

  7. These Pictures Will Help You Identify the Most Common Skin Rashes

    www.aol.com/pictures-help-identify-most-common...

    Ringworm. What it looks like: Ringworm is a common skin infection caused by a fungus. It gets its name from its circular rash, which is often red, swollen, and cracked. Other symptoms to note ...

  8. Physical attractiveness - Wikipedia

    en.wikipedia.org/wiki/Physical_attractiveness

    Manual labourers who spent extended periods of time outside developed a darker skin tone due to exposure to the sun. As a consequence, an association between dark skin and the lower classes developed. Light skin became an aesthetic ideal because it symbolized wealth. "Over time society attached various meanings to these coloured differences.

  9. 16 Masturbation Secrets That Will Just Make the Whole Thing ...

    www.aol.com/16-masturbation-secrets-just-whole...

    4) Use a Fleshlight (or another masturbation sleeve). Sex toys aren't just for people with a vulva. For penis-owners, Emily Morse, a sex expert and host of the popular podcast Sex with Emily ...