Dark Spots on Your Knuckles? It Might Mean Low B12
Researchers have discovered that darkening of the skin on your knuckles could be a warning sign that your body isn't getting enough vitamin B12. This vitamin …
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Why Some Kids Have More Colorful Skin: A Fruit and Money Study
Researchers in New Zealand discovered that children who eat more fruit and come from wealthier families tend to have higher levels of natural color-producing …
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