Proper digestion is the key to good health. Ama (a toxin) is caused by improperly or inadequately digested food, which is absorbed and stored in the body. Ama could also be mental affliction, due to various negative thoughts and stresses, which in turn have a significant effect on your digestive system. This stored Ama affects the secretion of various digestive juices. This leads to low Agni (Digestive metabolism); further precipitating further production of Ama, which sets in motion a vicious cycle of production and storage of Ama.