LONG POND, PA - JULY 27 :Richard Petty and Jerry Nadeau, converse during practice for the NASCAR Winston Cup Series Pennsylvania 500 on July 27, 2002 at Pocono Raceway in Long Pond, Pennsylvania. (Photo By Rusty Jarrett/Getty Images)

Former NASCAR driver discusses the head injury that ended his career

Jerry Nadeau's NASCAR career ended 14 years ago at Richmond Raceway.

Nadeau was involved in a collision that was one of the hardest impacts ever recorded in NASCAR history. The crash was recorded at 120 Gs, and Nadeau was left in a coma for nearly three weeks. He never raced in NASCAR again after 177 Cup races and one victory in seven years.

Nadeau, now 46, appeared in a feature story on NASCAR America to discuss the impact that injury had on his life.

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"I did everything I could, every rehab, everything I could do to make things better," Nadeau said. "My left side's kind of asleep. It's still in that numbness feeling. It tingles 24/7. Unfortunately, when you scramble the brains a little bit, what you have is what you have after that."

Nadeau said he plans to donate his brain to the Concussion Legacy Foundation. Fellow Hendrick Motorsports driver Dale Earnhardt Jr. also said he is donating his brain to science after sustaining several concussions during his career.

Nadeau said the injury that ended his career wasn't the only concussion he's sustained.

"I could probably list seven or eight concussions in my life," Nadeau said. "Obviously, if they can learn something from my injury, I'd be glad to."

The entire feature is worth watching just to get a perspective of how devastating a concussion can be, and Nadeau was very open and honest about side effects from the injury.

(h/t NBC Sports)