Hello I am going to tell you how to prevent a concussion. 1. When you are going for a tackle always keep your head up. 2. Always have your mouth piece in it might seem kind of crazy but it helps from chipping teeth and helps prevent the concussion. 3. Always have that chinstrap tight to prevent your helmet form coming off. 4. When you are going for a tackle try to prevent from the head to head contact. That is how you prevent a concussion.