File:ChronicFatigueSyndrome-BPS-Wessleymodel.jpg

Summary
The (bio)psychosocial model for 'chronic fatigue' of Harvey and Wessely.

Explanation: This is the biopsychosocial model that provides the rationale for the use of cognitive behavioral therapy and graded exercise therapy in patients with chronic fatigue syndrome and with chronic fatigue not caused by CFS.

Source: Maes, M., & Twisk, F. N. (2010). Chronic fatigue syndrome: Harvey and Wessely's (bio) psychosocial model versus a bio (psychosocial) model based on inflammatory and oxidative and nitrosative stress pathways. BMC medicine, 8(1), 35. License: CC-BY-2.0 https://bmcmedicine.biomedcentral.com/articles/10.1186/1741-7015-8-35