👉 A concussion is a type of traumatic brain injury (TBI) that occurs when a person's head is hit by a hard object, such as a car door or a wall. It can cause damage to the brain and may result in temporary or long-term neurological changes. Symptoms of a concussion include headache, dizziness, nausea, and numbness or tingling in one or both sides of the body. The severity of the injury depends on how many concussions occurred, as well as the individual
