Energetic Toll is the bodily stress that can be measured from an individual modulating a non-primary function. All energetics aside from the primary function will contain bodily stress, and the primary energetic will be the most natural resting state of the type, like an elastic band when it's let go. This energetic toll is greater for antithetical functions (tertiary and polar) and is less taxing for thetic functions (the auxiliary). Identifying function hierarchy is done by measuring energetic toll, not just the number of signals present from each of the four energetics. Every development level has a unique energetic stress. For examples of these different energetic stresses, you can view the Definitive Vultology series.