Emily Kwong

Okay, so you got luge.

That's where athletes are lying on their backs and initiating those turns with their very strong calves.

And then there's skeleton, which I think has the coolest helmets in the Olympics because those athletes are racing head first.

Uh-huh.

The helmets are definitely aimed to get that racer, to get that athlete going as fast as possible.

Cool as this looks, this sport, all these sports, they come with broken bones.

They come with concussions and one of the lesser known ailments, sled head.

Wow, my dad would really appreciate that joke.

The umbrella term of sled head describes a wide range of symptoms.

Every case is different, but on the list is dizziness, exhaustion, nausea, discomfort with bright lights or loud noises.

Some people talk about cognitive problems, forgetfulness, emotional dysregulation issues.

But what's so interesting to me about sled head is the culprit is not a crash.

It's not anything dramatic.

It's just the routine vibrational exposure and high G-forces that these athletes are experiencing.

Yeah, so G-force is just the force felt by the body due to acceleration.

So for you and me just chilling in these office chairs, we feel... We feel G-forces?

We have Gs right now.

We're pulling bad Gs.

One G. One G?

That is, yeah, that's the force of gravity.