We use information from the body to construct our own emotions, to perceive others' feelings and thoughts, to navigate the social world, and to make decisions. Interoception refers to the ability to sense and make sense of bodily signals. How (and why) does interoception develop as the body undergoes the metamorphosis of pubertal development? How does the changing body induce plasticity in the brain to initiate neural network re-organization and rebuild one's internal model of the world? Together with Dr. Suzy Scherf, we are exploring adolescent interoceptive development from a developmental neuroscience lens. We argue that interoception should develop in adolescence in the service of mastering adolescent developmental tasks, such as learning complex emotions, building social connections, and becoming independent. We will also investigate how the physical body, such as metabolic states, influences adolescent socioemotional experiences using behavioral and neuroimaging methods.