7Mood Changes
A few weeks after a concussion, a person with a concussion might experience some changes in his or her behavior or mood. This indicates some damages or effects to the cognitive functions and associated parts. If you notice someone becoming sad, angry, irritable, grouchy, or emotional unexpectedly without any obvious reason, then they might experience a concussion. In some cases, they can even act out, lose interest in some favorite activities or things, and become more violent. [7]















