Fingernails, often overlooked, are biological indicators of health. Conditions like clubbing, white flecks (leukonychia), ...

If your nails are cracked, rigid, bumpy, or you're suffering from easy damage, you need to improve your nail health through a change in your diet. These foods are some of the best to add to your diet.

Harvard-trained longevity doctor David Sinclair suggests nail growth can be a surprising indicator of biological age. A 1979 study found nail growth slows by approximately 0.5% annually after age 25, ...

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