The World Health Organization’s International Classification of Functioning, Disability, and Health is a framework for organizing information on functioning and disability. Functioning, as a concept, constitutes a rethinking of health that goes beyond the medical model, which is focused exclusively on disability and disease. Rehabilitation professionals are key in this transformative approach. This public workshop will facilitate a discussion on the concept of functioning and its role in rethinking the concept of health, with a focus on healthy aging and the future of rehabilitation as a health strategy.