Lifespan research explores the biological, psychological, and social factors that influence human development and aging over the course of a person's life. This area of study examines how individuals change and grow from infancy through old age, and how various factors such as genetics, environment, lifestyle choices, and social relationships impact health and well-being over time. Lifespan research incorporates a multidisciplinary approach, drawing on fields such as psychology, biology, sociology, and epidemiology to better understand the complexities of human development and aging. By studying lifespan development, researchers aim to identify patterns, trends, and predictors of individual differences in aging and to develop interventions and policies aimed at promoting healthy and successful aging for all individuals.