DeanBJJ,

Where did you hear that body hits can cause a concussion? That is false.

Hmm, I've heard that myself for years. Here is something I found recently:

I also thought this was the case. It is interesting to see Mark discount this so black and white saying it can't happen.

The amount of force to the body that can result in a concussion will cause serious injury to the body. Injured shoulder (football players wear pads that can protect the shoulder while transmitting the hit to the neck.), cracked sternum (seatbelts in a car crash).

These concussions are usually more of a upper cervical injury with strain on the brain stem. This can disrupt blood and fluids to the brain and cause problems from the inflammation. Some experts call these cervical concussions. The symptoms overlap with brain impacts.

If you watch the slo mo replays of these hits in football, you will see the violent whiplash of the head and neck.

That takes a lot of impact force