How to pronounce "concussion"

And most experts think that it's not,

but the work that we're doing in my lab

is starting to reveal more of the details around concussion

so that we can have a better understanding.

The reason we're able to prevent skull fracture with helmets

is because it's pretty simple. We know how it works.

Concussion has been much more of a mystery.

So to give you a sense of what might be happening in a concussion,

I want to show you the video here

that you see when you type into Google,

"What is a concussion?"

The CDC website comes up,

and this video essentially tells the whole story.

What you see is the head moves forward,

the brain lags behind,

then the brain catches up

and smashes into the skull.

It rebounds off the skull

and then proceeds to run into the other side of the skull.

And what you'll notice is highlighted in this video from the CDC,

which I'll note was funded by the NFL,