pc:google

A concussion is a type of traumatic brain injury or TBI caused by a bump, blow, or jolt to the head. The hit to the body causes the head and brain to bounce around creating damage to the brain cells. Medical providers may describe a concussion as a “mild” brain injury because concussions are usually not life-threatening.

pc:google

Signs and symptoms generally show up soon after the injury. Some signs are that the victim may appear dazed or stunned. The mood,behavior,or personality changes and forgets instructions. Some symptoms are headaches, nausea, and balance problems. Another symptom is being bothered by light or noise.

Source:info