It’s in the last of these “derms”  — the ectoderm  — where the vast majority of skin, hair, and nails develop. Wondering how ...

A renowned Harvard genetics expert has unveiled a rather unconventional method to gauge how gracefully you're aging-look no further than your fingernails. Dr. David Sinclair, a professor at Harvard ...

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Some mistakes -- including while getting manicures -- could be weakening your nails. But there are ways to fix them. Ilja - stock.adobe.com Leave your weak nails in 2024. Dr. Mary Stevenson, a ...