The part of the brain responsible for regulating balance is the cerebellum. Located at the back of the brain, the cerebellum plays a crucial role in coordinating voluntary movements, maintaining posture, and ensuring balance. It receives sensory information about the body's position in space and fine-tunes motor activity to help maintain stability and coordination. The cerebellum works in conjunction with other parts of the brain, such as the vestibular system, to provide a sense of equilibrium and support various motor skills. Damage to the cerebellum can lead to balance issues and difficulties in movement.