Concussion Fundamentals with Dr. Eliza Sampey

Traumatic brain injuries in endurance athletes often go undertreated due to the invisible nature of the injury and a culture that prioritizes pushing through pain. A concussion triggers a neurometabolic cascade, creating a temporary energy crisis in the brain that requires three to six weeks for full metabolic resolution. During this vulnerable window, re-injury—or even excessive physical or cognitive strain—can lead to prolonged recovery or, in rare cases, fatal second-impact syndrome. Effective rehabilitation requires an integrated approach that addresses seven key systems, including autonomic, visual, vestibular, and cervical functions. Rather than total isolation in a dark room, recovery involves sub-symptom threshold exercise and the gradual, guided reintegration of daily activities. Athletes must prioritize professional evaluation by a concussion-literate provider to ensure proper healing and avoid long-term functional impairment.