The oldest advice in the building

Dispatch, London, September 2026

The oldest advice in the building

Three days at the Health Optimisation Summit, 141 brands on the floor, and almost nothing the speakers recommended was for sale.

6 min read
Wim Hof speaking on stage at the Health Optimisation Summit 2026 in London
Wim Hof, who spent most of his hour on emotion rather than on cold. Maison Infrared

The Business Design Centre in Islington was built as an agricultural hall in 1862, and from the upper gallery you can still read the original shape of it, a long iron and glass roof over a floor laid out for livestock. In September it held 141 wellness brands and around four thousand people. There were hyperbaric chambers, whole body light beds, vibration plates, a cold plasma lounger that looked like furniture from a film about the future, and somewhere near the middle, a queue for a machine that measures how old your blood thinks you are.

I went for the hardware, because that is what this publication is about, and I came away with a notebook that is mostly about other things.

The programme ran across four stages and a workshop area for three days, and far more of it happened than any one person could sit through. I chose five sessions, picked mostly for their distance from one another. A former special forces soldier who has made a career out of surviving weather. A neuroscientist with a post at MIT Sloan. A neuro-optometrist who treats vision as something trainable. A researcher who took part in the first study to hold human beings inside a continuous DMT state. And a 67 year old Dutchman who has climbed above the snowline in shorts.

What all five share is the premise the whole weekend rests on, which is that health is something you can work at rather than something that happens to you.

Given that starting point I expected two days of method. What kept arriving instead, from all five directions, were the same four subjects: other people, the ordinary things, discomfort, and how little of any of it has actually been measured.


What people say once they have gone far enough

Bear Grylls spent an hour on the main stage and very little of it on endurance. He said that in selection, skills could always be taught, and the thing they were actually looking for was character, and that the way to measure a life was by the quality of your relationships with the people closest to you. He mentioned interviewing a woman who had reached 104, and asked her what the best part of it was. She told him there was no peer pressure.

"Leave ego at home, ego kills."

Bear Grylls
Bear Grylls in conversation with Tim Gray on the main stage at the Health Optimisation Summit 2026
Bear Grylls with Tim Gray, founder of the summit, on the main stage. Maison Infrared

Dr Tara Swart closed on the idea that love is all there is. Wim Hof spent much of his hour on the same ground, returning again and again to the argument that a person is more than bones and skin.

Dr Tara Swart speaking at the Health Optimisation Summit 2026
Dr Tara Swart, neuroscientist and senior lecturer at MIT Sloan. Maison Infrared

"We need to be connected to our souls, we cannot point out to our soul, but the soul is in love for your daughter, for your friend, for yourself."

Wim Hof

Two of these three are known mainly for what their bodies can withstand, and given an hour on a stage, neither spent much of it on the body. Both talked about love in the broad sense, meaning other people, community, the living world, and whether a person manages to extend any of that to themselves. That is not what I had written at the top of my notebook before the weekend started.


The recommendations were free

I started keeping a separate column in the notebook for anything a speaker actually told the room to do. By Sunday afternoon that column had almost nothing in it with a price attached.

Two hours outside
Bryce Appelbaum's number, and the one thing he asked the room to change. He also drew a distinction most people have never had put to them, that eyesight and vision are not the same thing, and that the second one responds to training.
Something you enjoy
Dr Tara Swart, on longevity, which she defined as doing something you actually enjoy. She also pointed at art, and at the research on people who make things having lower stress.
Humming
Chanting, humming and other vibration through the throat, offered by Dr Swart as a way of resetting the vagus nerve. Free, slightly embarrassing, and available in a car.
A cold shower and breathing
Hof, more than once. This is the part of his method that needs no plunge pool, no instructor and nothing bought, which is why he keeps starting people there rather than anywhere more impressive.
Dr Bryce Appelbaum speaking at the Health Optimisation Summit 2026
Dr Bryce Appelbaum, whose one ask of the room was two hours a day outside. Maison Infrared

What struck me was the order. These were the first things each speaker reached for, ahead of any method and ahead of anything on sale downstairs, and several of them said as much without being asked. Hof put it most plainly.

"What I can do anybody can do."

Wim Hof

The comfort problem

The sharpest line of the weekend was also the least comfortable to sit with, and it came from Hof about twenty minutes into his hour.

"We are killing ourselves with too much comfort."

Wim Hof

This is the part of the weekend that connects back to everything Maison Infrared writes about, because a modern week lacks more than light and movement. It has also been engineered to hold every room at the same twenty one degrees from January to August. The body was calibrated by conditions that varied, and we have spent a century removing the variation on purpose, floor by floor and building by building.

Dr Jack Allocca speaking at the Health Optimisation Summit 2026
Dr Jack Allocca, neuroscientist, on stimulation and experience. Maison Infrared

Jack Allocca described the same condition from a different angle, in the line I have thought about most since.

"We are drowning in peak stimulation rather than peak experience."

Dr Jack Allocca

Those two observations sit on different axes and point at one thing. The modern week has had its difficulty engineered out and its stimulation turned up, which is how a person can reach the end of a day thoroughly entertained and never once cold, hungry, or absorbed in anything.

Dr Swart, on a different stage, was arguing something close to the opposite and equally true. She said that birds would not sing if predators were around, which is a way of saying that nothing restorative happens in a nervous system that does not feel safe. Set the three of them side by side and the shape of the problem appears. A body needs enough safety to settle and enough difficulty to stay calibrated, and the modern week is generous with the first and almost entirely free of the second.


How little of it has been studied

The fourth thread ran under several sessions without anyone building a talk around it, which is that a good deal of what was recommended from those stages has been examined far less carefully than the equipment on the floor below. It leaves a question sitting there that nobody picked up.

How often does research funding go to the things that cost nothing?

Studies follow the money, and a cold shower has no sponsor. The consequence is that the cheapest interventions tend to be the least examined, which is a different problem from being disproved and needs a different kind of attention.

Jack Allocca, who works at the edge of psychedelic neuroscience, put the necessary caution better than anyone in the building.

"Like all the best things in life if they can make they can also break."

Dr Jack Allocca

We know a great deal more about the body than we did twenty years ago and we still know very little, and a field moving at this speed will turn out to have been wrong about some of what it currently believes. The useful response is to hold the present answers loosely, and to stay particularly loose with the ones that arrive attached to a price.


Back on the floor

After the last session on Sunday I went back down to the stands, which I mention because the obvious conclusion from everything above is that the equipment is beside the point, and that is not what I think.

A red light panel does not replace two hours outside and a sauna does not replace a relationship. What they can do, for people living in a European winter at a latitude the body was never calibrated for, is return some of the variation that modern building removed. That is a reasonable thing to buy and a reasonable thing to write about. The order matters though, and the order was the same from all five stages. Sunlight, movement, other people and getting out of your comfort zone come first, and all of them are free. The equipment is for the part of the year, and the part of the life, when the free version is not available.

Four thousand people came to Islington for the technology and went home with a list that mostly involved going outside. There is something reassuring in that, because it puts the part that matters most within reach of everyone, whatever else they decide to buy.


Common questions

Who spoke at the Health Optimisation Summit 2026?
The 2026 programme ran across four stages and a workshop area over three days. Wim Hof closed the summit and Bear Grylls appeared on the main stage with founder Tim Gray. This piece covers five sessions: Bear Grylls, Dr Tara Swart, Dr Bryce Appelbaum, Dr Jack Allocca and Wim Hof.
What is the Health Optimisation Summit?
An annual health, longevity and recovery event founded by Tim Gray, held at the Business Design Centre in Islington, London. The 2026 edition ran from 11 to 13 September, with a separate Business of Health day on the Friday and around 141 exhibiting brands on the floor.
Is the Health Optimisation Summit worth going to?
It depends what you want from it. As a way to try equipment you would otherwise only read about, and to hear people whose work you follow, it delivers. The recommendations that came from the stages were valuable and mostly free.
When is the Health Optimisation Summit 2027?
The 2027 edition runs from 10 to 12 September 2027 at the Business Design Centre in Islington, London, with the Business of Health day on the Friday and the main summit across Saturday and Sunday.

Reported from the Health Optimisation Summit, Business Design Centre, London, 11 to 13 September 2026. Quotations are taken from the author's contemporaneous notes made during public sessions. Where a note recorded the sense of a remark rather than its exact wording, the remark is reported rather than quoted. Maison Infrared attended on press accreditation and paid for its own travel. This article is general information and is not medical advice.

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