Professor Chalder is the author of Overcoming Chronic Fatigue
, along with Mary Burgess. She is currently Professor of CBT and Director of the Chronic Fatigue Syndrome Research and Treatment Unit at King's College, London. She has worked as a researcher and clinician in the area of CFS in adults and children for about 19 years. She and her colleagues developed the CBT treatment of CFS, which has been evaluated in a number of clinical research trials with positive outcomes.