Traumatic Brain Injury (TBI) occurs from an external force impacting the head, leading to cognitive, physical, and emotional symptoms. Functional neurologists diagnose and treat TBI by assessing the affected areas of the brain and nervous system. Treatment is individualized and focuses on promoting neuroplasticity through targeted rehabilitation exercises, sensory stimulation (like vestibular therapy and visual-motor training), and musculoskeletal rehabilitation to address both neurological and physical symptoms.