This is often the case. It is not that we do not eat enough food, but instead, we don't eat enough of the right kinds of foods. It is now felt that it is the consumption of a majority of inappropriate foods that lead to nutritional deficiencies in the body. There are, however, other ways in which the body exhausts its valuable supply of chemical elements. Excessive mental work, for example, can deplete the brain, nerves and glands.
Stress can wreak havoc on our immune system.
Toxins can to build up in our bodies, leading to chemical depletion. We can simply neglect our bodies or forget to get enough fresh air, sunshine and exercise. Any abuse or overwork to our bodies, in addition to any inherent weakness we may have, can leave us with nutritional deficiencies. Once the body is depleted of its needed chemical elements, the breakdown of tissue beings to occur. It is typically followed by the gradual accumulation of toxic materials in the tissue.