As you start to feel better. Yes, comparing driving following a concussion and driving under the influence can seem a bit extreme. Would You Recognize A Concussion If You Had One Dr Mark Heisig In fact, studies have shown that following a concussion, many of these same brain functions are altered, and remain that way even after symptoms have disappeared! What happens if you drive with a concussion . In most cases, concussion recovery takes about 7 to 10. If you sustained a concussion in an accident, there are often certain warning signs that you have a brain injury. Balance problems can also result, according to mayo clinic. Symptoms can last for days, weeks or longer. If you do and an event occurs that causes injury to another person you could When this happens, the driver or passengers can get violently thrown forward, causing the brain to rapidly accelerate and slam into the skull. What happens if a concussion goes untreated? Drivers attempting to get back behi...