Seeing This 1 Colour Under Your Fingernails Could Reveal Health Issues

You may already know that your nails can reveal a lot more about your health than many of us expect ― for instance, a brown line in your nail bed can alert you to the presence of some cancers.

But what about what’s happening under the nail? 

I, for one, had no idea that most of the gunk under your nails is actually not dirt. Dana Stern, M.D., a dermatologist, told Women’s Health that “the ‘gunk’ underneath fingernails is most commonly the keratin debris from the underside of the nail...