Among three hundred college students, researchers have traced a quiet but powerful arc: those who move their bodies regularly find themselves less afraid of one another. The discovery is not merely that exercise calms the nervous system, but that it reshapes a student's place in the social world — strengthening friendships, easing the transition into college life, and through those bonds, dissolving the sense that other people are a threat. It is a reminder that the body and the community are not separate territories, and that tending to one is often a way of tending to both.