This document discusses different perspectives on health and well-being. It explores how Ada, her GP, and her family each view Ada's health differently based on their own criteria. The document then examines definitions of health from the World Health Organization and the UK government, which incorporate physical, mental, and social dimensions. It also introduces the social model of disability and how views of assistive technology differ between the biomedical and social models. Finally, it discusses the International Classification of Functioning as an attempt to synthesize biomedical, subjective, and social perspectives on health.