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The vestibular system consists of the vestibular apparatus located in the inner ear and the central brain system that processes this information. The vestibular system is important to help maintain balance and for the stability of your gaze. When the vestibular system is affected via an injury or condition it can cause symptoms such as vertigo, spinning, lightheadedness, dizziness, falls and motion sensitivity. These symptoms can greatly affect your daily life.
(Source: Rope Neuro Rehabilitation)