After a sports concussion physical and mental (e.g. cognitive) rest are keys to recovery, says Dr. William P. Meehan, which means no video games, homework, or other activities that tax the brain and force it to work extra hard.
The difference between a concussion sign and a concussion symptom is that a sign of concussion is one that can be noticed, seen or observed while a symptom is something only the athlete feels or experiences.