Adolescence involves major physical, psychological, and social changes occurring between the ages of 10-19 as individuals transition from childhood to adulthood. Puberty is characterized by hormonal changes that trigger physical maturation. During this stage, adolescents seek independence from parents and form strong peer relationships as they develop their identity and experience new emotions. Their brains are still developing skills for emotional regulation and complex decision making. Conflicts with family are common as adolescents push boundaries. Overall development is shaped by genes, environment, culture and experiences.