This report discusses the application of psychological perspectives in health and social care, specifically focusing on the 3-6 years old children. It explores two lifespan psychological theories - Erikson's 8 Stages of Psycho-social Development and Piaget's stages of cognitive development. The report also highlights the specific behavior patterns, emotions, and cognition of children in this age group, as well as provides three recent research studies as supporting evidence. The impact of learning disabilities is also discussed.