The body constantly works to keep our system balanced and strong. That work is called healing.
Healing is a process that never end like your breathing or heartbeat. Every time you cut yourself, the body heals, mending damaged skin and tissues. Every time a virus take hold, the body heals, white blood cells rush to repel the invader. A cough in a smoky room. A pain that you alerts you to a medical problem. A good night, sleep after a tough day. All are healing.