What are the source of change and stability in behavior across the life span?

Sources of change and stability in behavior across the lifespan include genetic predispositions, environmental influences, and life experiences. Genetic factors set certain tendencies, while environmental contexts—such as family, culture, and socio-economic status—shape behaviors over time. Additionally, significant life events and personal experiences can lead to behavioral changes, while consistent routines and stable relationships can foster continuity. Together, these elements interact dynamically to influence individual behavioral patterns throughout life.