Wikipedia has a graph that expresses the Main Functions of the Life Force Decay. These two functions, the blue line and the gray/green line describe the Paths the body takes from birth ( zero on the scale ) to old age ( 10 on the scale ).The gray/green line represents the decline of Life Force without any help from, minerals, vitamins, enzymes, and herbs. The blue line describes the results with the help of these Nutrients. Further more with the correct doses, not too little and not too much, Your body can repair itself to regain some of the vital energy beyond what the blue curve indicates. The goal is to find the right dose of each of the many needed Nutrients.
The need for these Nutrients is based on the depletion of the soil and the many toxins in the environment. Including the less than optimal diets of modern life.