1.You’re having heart problems.
young asian man clutching chest on stairs, signs your cold is serious
If your nails are blue and it’s not because of bold polish choice you made, then you might want to get your ticker checked out. As dermatologist Katherine R. Garrity, MD, explained for Aurora Health Care, blue nails can indicate heart problems, as well as lung issues, bacterial infections, and Wilson’s disease (a rare genetic disorder that causes copper to accumulate in your vital organs, according to Mayo Clinic). And for things your ticker can tell you about your health, check out 30 Warning Signs Your Heart Is Trying to Send You.