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  2. Lighting for the elderly - Wikipedia

    en.wikipedia.org/wiki/Lighting_for_the_elderly

    Surveys show that 40 to 70 percent of those 65 years old and older suffer from chronic sleep disturbances. [2] The elderly tend to go to bed early in the evening and wake earlier in the morning than younger adults. Furthermore, the elderly often wake several times throughout the night and have difficulty falling asleep.

  3. 30 of the Best Brain Supplements for Adults - AOL

    www.aol.com/entertainment/30-best-brain...

    In this comprehensive guide, we unveil the 30 best brain supplements meticulously chosen to help adults sharpen their cognitive faculties, improve memory and safeguard against age-related decline.

  4. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    According to a 2017 Cochrane review, vitamin A deficiency, using serum retinol less than 0.70 μmol/L as a criterion, is a major public health problem affecting an estimated 190 million children under five years of age in low- and middle-income countries, primarily in Sub-Saharan Africa and Southeast Asia.

  5. Retinol - Wikipedia

    en.wikipedia.org/wiki/Retinol

    Retinol, also called vitamin A 1, is a fat-soluble vitamin in the vitamin A family that is found in food and used as a dietary supplement. [3] Retinol or other forms of vitamin A are needed for vision, cellular development, maintenance of skin and mucous membranes, immune function and reproductive development. [3]

  6. 5 supplements a doctor who says he's reversed his age by 20 ...

    www.aol.com/5-supplements-doctor-says-hes...

    Dr. Michael Roizen is 78 but says his biological age is 57.6. Roizen, who has written about longevity, takes supplements every day. They include multivitamins and aspirin.

  7. Presbyopia - Wikipedia

    en.wikipedia.org/wiki/Presbyopia

    Corrective lenses provide vision correction over a range as high as +4.0 diopters. People with presbyopia require a convex lens for reading glasses; specialized preparations of convex lenses usually require the services of an optometrist. [15] Contact lenses can also be used to correct the focusing loss that comes along with presbyopia ...

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