There's no shortage of folk wisdom about how to glean the state of your overall health from your nails, such as the pervasive idea that the white flecks that sometimes turn up – known as ...

In general, healthy nails should be smooth ... However, deviations from this pattern may indicate something wrong. 1. Brittle and dry nails If your nails are constantly brittle or break easily ...

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 ...