Dr. Philip McMillan,  John McMillan

When Michaela Peterson sat down to record her most recent update about her father, she was 25 weeks pregnant and visibly exhausted. For months she had watched Jordan Peterson, the Canadian clinical psychologist best known for his lectures and books, slide back into the kind of illness his family had hoped was behind them. She spoke of akathisia, the unbearable neurological restlessness her father had suffered in 2019 and 2020, now flaring again. She spoke of pneumonia, of sepsis, of a month in intensive care. She apologized for crying. The public read the update and reflexively settled on a familiar story: the old psychiatric-medication injury had come back.

Dr. Philip McMillan has been watching stories like this land the same way for five years, and he is not convinced. He is a physician who pays unusual attention to timelines. The timeline he has assembled from public sources does not behave like a clean relapse. It behaves like something medicine is still learning to describe. In his reading, the Peterson case is not a one-off tragedy. It is a template.

The Embers Were Already Burning

Long before the benzodiazepine story became public knowledge, the ground under Peterson’s health was uneven. There was a family history of autoimmune inflammation. There were two decades of SSRI use for anxiety and depression. Around 2016, a dramatic shift in diet produced a dramatic improvement in his symptoms. That last detail tends to get filed as a quirky personal anecdote. Dr. McMillan files it differently. When a person’s neurological or psychiatric state moves materially with food, something in the body is talking to something else. The immune system, the gut and the nervous system are wired together far more intimately than the conventional narrative allows.

By 2019, the clonazepam that had been used to manage anxiety had become its own problem. Dependence set in. Withdrawal was catastrophic. A kidney cancer diagnosis arrived in the same window and required specialist treatment abroad. For a while it looked as though the worst was over. Function returned. Not perfect function, but enough to work, lecture and write. The akathisia receded. The family breathed.

The First Hit and the Quiet Years

Then in August 2020 he caught COVID. It was mild. No hospital admission, no dramatic illness. By the ordinary standards of pandemic reporting, it barely counted. What it did leave behind was a primed immune system. A short time later, Peterson accepted a single-dose vaccine because international travel required it. Whatever immune signal that added sat on top of a body already carrying a lot of prior inflammation.

Between 2022 and 2025 he was relatively steady. Chronic inflammatory symptoms remained in the background. His daughter received a similar diagnosis in 2023. A grandfather died. The pressures were real, but the system held.

Until it did not.

Petrol on the Embers

“COVID is the petrol on the embers of inflammation,” Dr. McMillan explains in his recent video analysis. It is the kind of metaphor doctors usually dislike, because it is loose. It is also the kind that sticks, because it is accurate. When the embers are already there, from prior autoimmunity or neurological injury or a sensitized gut, a later spike protein exposure behaves like accelerant. It does not behave like a new infection.

This is where the language of priming matters. A primed immune system is not a sick one. It is a system quietly waiting. The nervous system can also remain compensated for years after an injury. Function looks fine. The weak point is still there. A later inflammatory event is what finally tests it.

The Prodrome We Keep Missing

The public story of Peterson’s 2025 decline settled on mold. After a memorial service for his father, he helped clean the family home. The house was contaminated. Shortly after, he felt worse. The link was temporal, the logic was obvious, the narrative was tidy.

Tidy narratives miss the prodrome. In medicine, a prodrome is the set of subtle warning symptoms that appear before an illness fully declares itself. Patients now routinely report that, before the exposure everyone else points to, they had already been feeling off. Tired. Headachy. A little inflamed. Sometimes they had been to a crowded event. Sometimes they travelled. Often they assumed a minor viral bug had come and gone. Then, weeks later, the system unravels. By the time anyone is in hospital, attention has shifted to the final diagnosis. The earlier immunological turning point has vanished from the story.

Mold is a primarily respiratory irritant. It does not usually produce fatigue, loss of work capacity, pneumonia, sepsis and a month in intensive care. Something else was running the show.

A Respiratory Illness That Lives in the Gut

If a single paradigm shift comes out of the Peterson case, this is it: severe COVID may be better understood as an intestinal disease with respiratory and neurological consequences.

“I’m going to position COVID, even the severe COVID, more of as an intestinal disease with respiratory complications,” Dr. McMillan says. He points to the one detail that never quite fit the old picture. In the Delta wave, many severely ill patients showed intestinal pathology. Severe cases did not usually arrive in hospital at the start of their respiratory symptoms. They arrived seven to ten days in, after the infection had taken a detour through the gut and bounced back to the lungs.

In someone with a gut-inflammation history, that detour matters. The inflammation feeds into whichever organ system already carries the weakest spot. For Peterson, that spot was neurological. The result looks like autoimmunity. It looks like psychiatric collapse. It looks like autonomic strain and systemic illness all at once, because it is all of those things expressed through one dysregulated immune loop.

What the Wider Data Says

The wider signal has been growing for some time. A recent analysis of 186 million NHS hospital episodes showed sharp post-2020 rises in exactly the kind of illness that expressed itself in Peterson’s body. Migraine hospital admissions up 33 percent. Multiple sclerosis up 32 percent. Inflammatory polyneuropathy, the same category of post-intensive-care nerve damage Peterson developed, up 39 percent.

Peterson is one public face of that curve. Most of the others are quiet. These are patients who, since 2023, have watched their energy fail and their cognition falter. Their pain has grown. Their doctors run through a set of diagnostic categories that no longer fit. Neurology goes in one box. Psychiatry goes in another. Infection goes in a third. Long COVID, when it comes up at all, is kept separate from the rest. The sequence connecting all four disappears between the boxes.

What Doctors Should Ask Next

The pattern cannot yet be proven in full from public information. If it is real, the clinical shift is concrete. History-taking has to lengthen. A patient walking in with flaring neurological symptoms needs to be asked about more than the obvious exposure. The right question is about the prodrome: crowds, gatherings, travel, that low-grade viral feeling in the weeks before the collapse. Food sensitivity and gut symptoms need to rejoin the history, not as side notes but as signal. Prior inflammatory and neurological injuries need to be treated as terrain, not as resolved events.

The biology is moving faster than the language clinicians have for it. Cases like Peterson’s are making the gap harder to ignore.

One public collapse. One recognizable face. A pattern reaching, quietly, into a great many other lives.