One day your manicure looks so good, you wonder if you’ve missed your calling as a hand model. The next day, you start to notice that your nails have started to split and peel. What’s going on? “The ...

Fingernail ridges are visible lines or grooves on the nail’s surface. They can run vertically from the cuticle to the tip of the nail (known as longitudinal ridges) or horizontally across the nail ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." First, a crash course on what fingernail ridges even are: Vertical nail ridges (lines that run from your ...