This book contains research related to mental illnesses, particularly bipolar disorder and schizophrenia. This includes information on symptoms, how the diseases develop, current treatments available, support for family members, and new directions in research. There is also a section on comorbidity as it relates to addiction and other mental illnesses. This book consists of public domain documents which have been located, gathered, combined, reformatted, and enhanced with a subject index, selectively edited and bound to provide easy access.