If the immune system is weakened from poor nutrition, excessive environmental pollutants or continuing debilitating stress, the cancer cells are uninhibited and will multiply rapidly forming the symptomatic "growth" of cancer. Our immune system generally weakens with advancing age. This increases the possibility of degenerative metabolic diseases occurring. One of the primary objectives of all metabolic therapy is to revitalise the body's immune system and to restore it to a fully functional condition. Accomplishment of this goal permits the immune system to eliminate or otherwise negate the cancer cells before they can begin an invasive growth.