✱ 7 – You can Check Your Lung and Heart Function
Your nails help a lot in assessing the health of your lungs and heart. One way is to look for any bluish discoloration. The bluish discoloration is called cyanosis, and it occurs when your heart or lung is not working properly leading to oxygen deficiency in your body. Another way is to check clubbing. Bring the nails of your middle fingers together, and see if you can observe a diamond-shaped window between them. If it is absent, then your nails are clubbed that is a sign of lung and heart dysfunction.
