Conservative radio host Michael Savage believes he knows why Chief Justice John Roberts joined the liberal justices to uphold President Barack Obama's health care reform law: "cognitive problems" due to epilepsy medication.

"Let's talk about Roberts," Savage said on his Thursday evening radio program. "I'm going to tell you something that you're not going to hear anywhere else, that you must pay attention to."

He continued: "It's well known that Roberts, unfortunately for him, has suffered from epileptic seizures. Therefore he has been on medication. Therefore neurologists will tell you that medication used for seizure disorders, such as epilepsy, can introduce mental slowing, forgetfulness and other cognitive problems."

"And if you look at Roberts' writings you can see the cognitive dissociation in what he is saying."

The Associated Press reported in 2007 that Roberts had suffered a seizure and was taken to Penobscot Bay Medical Center in Maine where he was given a "thorough neurological evaluation, which revealed no cause for concern."

Savage has also railed against treatments for attention deficit hyperactivity disorder (ADHD) and claimed that autism is "a fraud, a racket."

"I'll tell you what autism is," he said in 2008. "In 99 percent of the cases, it's a brat who hasn't been told to cut the act out. That's what autism is. What do you mean they scream and they're silent? They don't have a father around to tell them, 'Don't act like a moron. You'll get nowhere in life. Stop acting like a putz. Straighten up. Act like a man. Don't sit there crying and screaming, idiot.'"

Listen to this audio from Talk Radio Network's The Savage Nation, broadcast June 28, 2012.

(h/t: Real Clear Politics)