Psychiatrists commonly claim today that mental disorders are just like physical illnesses, like diabetes, heart disease or asthma. Nothing could be further from the truth. Psychiatrists not only admit that they have no idea of what causes these supposed ''diseases,'' they have no scientifically validated proof whatsoever that they even exist as discrete physical illnesses. Patients are betrayed when told their emotional problems are genetically or biologically based. This week's guest, Georgia Janisch, a registered dietician, will discuss what you can do to find the real underlying medical conditions.