This comprehensive guide explores the concepts of health, disability, illness, and behavior in relation to users of health and social care services. It analyzes the changing perceptions of specific needs over time and examines the impact of legislation, social policy, society, and culture on service provision. The guide delves into the care needs of individuals with specific needs, evaluating current support systems and services available in a chosen locality. It further explains approaches and interventions for supporting individuals with specific needs, evaluating their effectiveness and discussing the potential impact of emerging developments. Finally, the guide explores different concepts of challenging behavior, its impact on health and social care organizations, and analyzes strategies for working with challenging behaviors associated with specific needs.