If you have these lines on your nails after 40, it is a clear sign that..
What Do Vertical Ridges on Your Nails Mean After 40? Noticing thin vertical lines on your nails as you age? You’re not alone. These ridges, called longitudinal striations, are usually harmless and a common part of aging. As we get older, keratin production in the nail matrix slows or becomes uneven, causing texture changes. Main…
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