Last year my son ended his football season with a concussion during the last game. This made us very cautious of this year's season and we check him for signs after every game. Concussions are not limited to football, soccer and basketball players are in danger of concussions too.
Adults can also get concussions from falls and accidents. Be aware of the symptoms and seek medical help. Here is an article from GEHA insurance company that describes what happens when you get a concussion and what you should do.
Concussion in youth sports | GEHA