6Advances in medicine have led to patients surviving and living longer with their chronic disease, increasing the risk that they will develop other comorbidities. Exchanging information across specialties and learning from each other may lead to a better understanding of patients' challenges and likely also enhance collaboration across disciplines and lead to better quality of care for patients. The textbook is an international and multi-disciplinary team effort written by experts in their field. It is relevant for professionals from many disciplines, such as practitioners or researchers from health care, nursing, physiotherapy, general practice, medical psychology, and clinical psychology. Due to the contributions of specialists in diverse fields the textbook has information relevant to those interested in learning about many different specialized areas, such as endocrinology, cardiology, rheumatology, nephrology, and pain research.