People are still talking about Jon Jones.

Although he has been stripped of the UFC light heavyweight title and removed from the official UFC rankings after his latest failed drug test, he is still in the United States Anti-Doping Agency’s (USADA) drug testing pool.

The former UFC champion failed an in-competition drug test at UFC 214. Due to that failed drug test, Jones has been provisionally suspended by USADA pending a full investigation by the CAC (California Athletic Commission).

Jones defeated his arch-rival Daniel Cormier by third-round TKO in the main event of UFC 214 on July 29 in Anaheim, California on PPV (pay-per-view) to regain the title. Jones tested positive for Turinabol.

In the past, UFC health and performance vice president Jeff Novitzky has gone on record by stating that Jones’ latest case is still being investigated.

UFC commentator Joe Rogan took this theory and stretched it to the absolute limit during a recent edition of his podcast.

Rogan pointed to brain injury as a possible reason for Jones’ actions.

“There’s a symptom of something else going on,” Rogan said (transcript via MMA Weekly). People don’t like to discuss this but one of the things that it easily could be is that Jon has impulse control [issues] because he’s been sparring and fighting at the highest level of the sport for many, many years now and he’s gotten hit in the head a gang of times. There’s no way around it.”

“There was an article I posted on Twitter that came up a couple of days ago, these neuroscientists were examining brain injury and violent behavior and like how they’re connected,” he continued. “How damage to certain areas of the brain has irreparable consequences on the decision-making ability of the person who gets hit.”

The article Rogan was likely referring to was a study done by neurologist Ryan Darby. If you haven’t seen the article, it concluded that brain lesions caused by a stroke or trauma could contribute to criminal behavior.

“Jon is just one of the most talented guys of all time if not the most talented guy of all time and also the biggest disaster in terms of the biggest mistakes that he’s made,” Rogan said.

“We’ve never had a fighter that did a hit-and-run on a pregnant and broke her arm and then took off and then tests positive for drugs cause he’s on dick pills and then tests positive again after his comeback, after a spectacular win over Daniel Cormier.”

“He’s disappointing in that regard,” he added. “So exceptional in his physical abilities but the choices he makes and the decisions that come out of those choices are just f–king terrible.”