Controlling, increasing, decreasing, preserving or destroying the hot, cold, dry, airy, watery, thick, thin, nutrient (building, cleansing) and or poisonous nature, substance, fuel of the BODY every STRUCTURE cell, tissue, nerve, gland, organ, bone, muscle, artery; hormone, antibody, blood, enzyme, acid, urine stool FUNCTION digestion, respiration, circulation, reproduction, locomotion, immunity healthy, diseased...