Expert reveals the fingernail sign that tells you how long you'll live

A world-famous longevity expert has revealed that you may be able to predict your lifespan based on how quickly your fingernails grow.

Dr David Sinclair, an expert in genetics at Harvard Medical School, said nail health is a key indicator of the rate at which our body generates new, healthy cells.

The faster this happens, the more likely we are to be protected against age-related decline.

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