NFL star Brett Favre announced that he has been diagnosed with Parkinson’s disease, a disorder of the nervous system.

The Super Bowl winner made the revelation Tuesday during a Congressional hearing on Social Security reform.

“Unfortunately, I also lost an investment in a company that I believed was developing a breakthrough drug for concussions that I thought would help others,” the Hall of Fame quarterback said. “And I’m sure you can understand why it’s too late for me, because I’ve recently been diagnosed with Parkinson’s. This is also a cause that is very close to my heart.”

The company Favre is referring to is called Prevacus. Prevacus produces concussion medicine and Favre was an investor.

According to ESPN, the company’s founder, Jacob VanLandingham, was found guilty in July of $1.9 million in wire fraud after he “obtained government funds to unlawfully enrich himself,” the documents said.

Before VanLandingham’s conviction, Favre was involved in a major Mississippi welfare lawsuit alleging the misuse of $77 million in Temporary Assistance for Needy Families (TANF) funds.

In 2018, former Green Bay Packer Megyn Kelly opened up about his history with concussions. “If you’re having ringing in your ears, seeing stars, that’s a concussion. And if that’s a concussion, I’ve had hundreds, maybe thousands of them in my career, which is scary,” Favre said.

Not only are concussions often linked to CTE, a neurodegenerative disease that has afflicted a number of NFL players, but they can also contribute to Parkinson’s disease.

A Family medicine and community health Research shows that just one concussion can increase a person’s chance of developing Parkinson’s disease by 57 percent.