Two sources of motivation are internal and external (Deckers, 2010). Internal sources include biological and psychological and external sources are environmental (Deckers, 2010). “Biological variables refer to material characteristics of the body and brain that serve to motivate behavior” and “as a general rule, as biological indicators of hunger increases, the motivation for acquiring, preparing, and eating food increase” (Deckers, 2010, p. 8). An example of the biological variables, as a retired member of the military one learns quickly what biological variables mean when going through survival training, one will learn to hunt, capture, prepare, and eat whatever to survive. “Psychological variables refer to motives and are studied indirectly through measurable indicators” and “as a general rule, as indicators of a psychological need increase, the motivation for need-relevant incentives, consummatory behaviors, and associated feelings increase” (Deckers, 2010, p. 8). An example of the psychological variables,…