Multiple Personality Disorders

In medicine, much can be learned from exceptions rather than from a routine study. Multiple Personality Disorders was made famous in the book, Dr Jekyll and Mr Hyde, in which two personalities inhabit the same body. Recent medical researcg shows that these two personalities may exhibit even widely different physical characteristics. For example, while one personality would be diabetic, the other personality would test normal for sugar. Similarly, while one personality is short-sighted, the other personality is long-sighted. Though these two personalities inhabit the same body, how does the body exhibit different physical and chemical characteristics in each personality? What is the role of mind over matter?