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  2. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    Vitamin A status involves eye health via two separate functions. Retinal is an essential factor in rod cells and cone cells in the retina responding to light exposure by sending nerve signals to the brain. An early sign of vitamin A deficiency is night blindness. [6]

  3. 10 Best Fruits & Vegetables To Eat for Longevity - AOL

    www.aol.com/lifestyle/10-best-fruits-vegetables...

    Photo: iStock/Nastasic. Design: Eat This, Not That!There are so many factors that affect how you age: genetics, environment, stress, tobacco use, and your diet. While some factors are beyond your ...

  4. These are the 5 best and the 5 worst vegetables for you - AOL

    www.aol.com/lifestyle/2017-03-29-5-best-worst...

    One vegetable has the same sugary response as a can of Coke. Another vegetable is the ultimate hangover cure. These are the 5 best and the 5 worst vegetables for you

  5. Adaptation (eye) - Wikipedia

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

    Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. [1] In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours [ 2 ] in which each eye adjusts from a high to a low luminescence "setting ...

  6. 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]

  7. 20 Winter Vegetables That Are Seriously Good for You - AOL

    www.aol.com/lifestyle/20-winter-vegetables...

    Don’t worry, you needn’t dine exclusively on mac and cheese and chicken pot pie from December through February—there's a whole host of delicious winter vegetables (like cabbage, kale and ...