Elon Musk is showing signs of "rapid aging." 

This, according to the Daily Mail, is the opinion of a top New York-based physician named Stuart Fischer.

Fischer voiced his concern about Musk's health after Musk's recent appearance on Joe Rogan's podcast.

Concerns for Elon Musk's health as doctor spots worrying sign in latest Joe Rogan episode

A top doctor has raised concerns about Elon Musk’s health after the billionaire showed apparent signs of 'rapid aging.'

Musk, 54, looked old, tired and drained during his eighth appearance… pic.twitter.com/8K89ffjvkt

— Juan Torres (@juanpodcast1) November 1, 2025

"Rapid aging"

According to Fischer, things are going in a bad direction, health-wise, for the 54-year-old Musk.

The Daily Mail reports:

Dr Stuart Fischer a New York-based physician, told the Mail: 'Even at the Republican National Convention in July 2024, he was fresher-faced compared to now. 'The exposure, the stress, and the controversy appear to have aged him physically and emotionally.'

It appears that the doctor is likely referring to the controversy that arose between Musk and President Donald Trump, regarding the "Big, Beautiful Bill." This appeared to lead to a rift between Trump and Musk, but the two recently put their differences aside.

The Daily Mail continues:

Dr Fischer, who did not examine or treat Musk, added that rapid aging doesn't just show on the face, 'It puts you at risk of heart attacks and strokes.' He added: 'Being stressed all the time floods the body with cortisol and adrenaline, which accelerates wear and tear on the heart and makes blood clots more likely. 'Chronic stress also reduces nutrient absorption, so essential vitamins and antioxidants aren't used effectively, causing the 'rusting: of cells. 'Poor sleep and eating poorly when you're stressed only make it worse.'

It, of course, is no secret that Musk makes serious sacrifices for his work.

In related news...

Musk always seems to be on the verge of pioneering something, and this past week, it was announced that he launched an alternative to Wikipedia.

The Associated Press reported:

Elon Musk has launched Grokipedia, a crowdsourced online encyclopedia that the billionaire seeks to position as a rival to Wikipedia. Writing on social media, Musk said that Grokipedia.com is “now live” and its goal is the “truth, the whole truth and nothing but the truth.”

Wikipedia has been criticized for seeming to harbor a left-wing bias, and this appears to be Musk's solution.

The Associated Press adds:

Musk has previously criticized Wikipedia for being filled with “propaganda” and called for people to stop donating to the site, which is run by a nonprofit. In September he announced that his artificial intelligence company xAI was working on Grokipedia.

The big question, of course, is whether people are willing to give up Wikipedia for Grokipedia. Time will tell.