Poor adherence or compliance to treatment has major medical, psychological and economic consequences. This monographs provides comprehensive coverage of issues and research in the area of adherence and treatment in medical conditions. It covers all aspects within this field and includes chapters on the role of doctor-patient communications; memory; adherence in specific groups, such as children and the elderly; adherence to different treatments, such as diet and exercise; and reviews of adherence in specific conditions, such as diabetes and asthma.