In our lifetime we produce 29 meters of fingernails and toenails. They make gripping easier and protect toe and fingertips from injury. That tells us the condition of our nails. And that’s how they stay healthy.
Nails are made up of many layers of horny cells. The horn plates helped our ancestors to climb trees and break open fruit. Today they mainly protect the tips of the feet and fingers from injuries. They can quickly slip out of sight when it comes to body care: they break off or are torn, cuticles grow over the nail moon, the polish is peeling.