Being attacked or injured It is a fact that our bodies are constantly under attack from our environment. Sometimes it is under attack even from ourselves. The body has defenses against these attacks. Sickness Germs, bacteria, molds, and viruses may attack parts of our bodies, trying to infiltrate and use the body as a home or source of food. Not only can they destroy our cells, but they often may release poisons that can harm our whole being.
Cleanliness is one defense against disease.
Also, the body creates internal defenses against specific bacteria and viruses. In fact, because the body builds up these defenses, there is a question whether being too clean is actually good for you, because you may then not develop the natural defenses needed to maintain your health. Injury Injury to parts of our body can come from attacks by animals or other people, or they can occur through an accident. Caution is the best defense against injury. Carelessness or ignorance often results in injury.