Your fingernails might seem like simple protective coverings for your fingertips, but they’re actually sophisticated diagnostic tools that can reveal crucial information about your protein intake.

Hardly anyone uses normal nail polish anymore, it seems. Now, gel and acrylic manicures are the thing—and you don’t even have to go to a salon to get them. Gel and acrylic manis appeal to many because ...

They’re trying to put the “cure” in manicure. Researchers from Emory University and Georgia Tech developed a smartphone app to screen for anemia using images of a person’s fingernail beds instead of ...