If you have these lines on your nails after 40, it is a clear sign that..

called longitudinal ridges or striations, tend to become more noticeable after the age of 40. Just as skin gradually loses elasticity and hair changes texture or color, nails also change as keratin production becomes less even with age. The result is a slightly raised or textured appearance across the nail surface.

Dryness can make the ridges appear continue reading …