A concussion is caused by an impact to the head or upper body and interferes with normal brain functions.
The effects are usually temporary, but it is a serious injury that needs treatment from a proper medical facility.
The brain is surrounded by cerebrospinal fluid and a protective tissue called meninges and skull.
When the head is shaken violently, the brain slushes through cerebrospinal fluid, which can cause meninges or the brain to hit your skull.
This situation can cause temporary loss of consciousness, dizziness, nausea, and ringing in ears.
These symptoms can be delayed for several hours or days (mood shifts, sensitivity) so pay attention to how you feel and get to a doctor if you don’t feel right.
You will need rest from physical and mental activity, and it’s best to be monitored for at least 24 hours after suffering a concussion.