Emily Kwong

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.

Okay.

But think about being in a car going around a tight turn.

The forces are more intense than that of Earth's gravity.

You may even get up to 2 Gs.

And for these bobsledders, they are experiencing up to 5 Gs.

It's like being on a massive roller coaster.

It's intense.

In fact, I want to show you a clip from the IBSF World Cup just a few weeks ago.

This is the German team.