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  2. Health effects of sunlight exposure - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_sunlight...

    Exposure of skin to ultraviolet radiation from sunlight presents both positive and negative health effects. On the positive side, UV exposure enables the synthesis of vitamin D3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [2][3] While vitamin D can also be obtained through dietary ...

  3. My Inconspicuous Spot That Was ‘Nothing’ Turned Out ... - AOL

    www.aol.com/inconspicuous-spot-nothing-turned...

    Melanoma mostly occurs on the sun-exposed parts of the skin (i.e. those that show when you wear a bathing suit) including your head, neck, back, shoulders, and arms, but Hurlbert stresses that a ...

  4. Hyperpigmentation on Skin: Causes and Treatments - AOL

    www.aol.com/lifestyle/hyperpigmentation-skin...

    It can occur anywhere on the body but is most common on the face. Sun exposure, hormonal changes, skin inflammation or trauma, as well as certain medications, can cause the skin to produce too ...

  5. Hyperpigmentation - Wikipedia

    en.wikipedia.org/wiki/Hyperpigmentation

    Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair. The process of melanin synthesis (melanogenesis ...

  6. Scintillating scotoma - Wikipedia

    en.wikipedia.org/wiki/Scintillating_scotoma

    Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). Originating from the brain, it may precede a migraine headache, but can also occur acephalgically (without headache), also known as visual migraine or migraine aura. [4]

  7. The 12 Best Under Eye Concealers for Dark Circles, Bags, and ...

    www.aol.com/12-best-under-eye-concealers...

    For your under eyes: Mellinger recommends applying a couple of dots under the inner corner of the eye and then blending outwards. "Be careful not to bring the concealer all the way to the lower ...

  8. Retinitis pigmentosa - Wikipedia

    en.wikipedia.org/wiki/Retinitis_pigmentosa

    Retinitis pigmentosa (RP) is a member of a group of genetic disorders called Inherited Retinal Dystrophy (IRD) that cause loss of vision. [1] Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). [1] As peripheral vision worsens, people may experience "tunnel vision". [1]

  9. Adaptation (eye) - Wikipedia

    en.wikipedia.org/wiki/Adaptation_(eye)

    Adaptation (eye) In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision as cone cells are only able to function at higher ...

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