The complicated conditions of starvation and oral deprivation are studied and described. Hunger gives way to restless wandering and to wish fulfilment in dreams and visions of food. Irritability, suspicion, secretiveness, aggressive feelings, and general regression occur. Personal habits of eating and cleanliness are altered. In the final stage, apathy and even death occur. Case histories are given and suggestions are made for therapy in postoperative and medical cases.