What if your body is not a vehicle?
There is a philosophical error so deeply embedded in Western thinking that most people absorb it before they learn to read. The error: you are a mind that has a body. The mind does the real work — thinking, choosing, feeling, meaning-making. The body is the machine that carries the mind around. Feed it, exercise it, maintain it, and get back to the important business of cognition.
Maurice Merleau-Ponty, writing from his office in Paris in the 1940s — cigarette smoke curling above stacked manuscripts, the sound of traffic on Rue d'Ulm — dismantled this assumption with a thoroughness that philosophy is still absorbing. His argument, grounded in phenomenology and perception research: you do not have a body. You are a body. Consciousness is not a ghost operating a machine. It is embodied. Your thoughts are not produced by some ethereal mind and then transmitted to a body. They emerge from a body that is already in a world, already sensing, already oriented.
This is not a metaphor. It is an empirical claim. And the metabolic data from the past decade has confirmed it with a bluntness Merleau-Ponty could not have anticipated.
When 93.2% of American adults lack optimal cardiometabolic health, that is not a body problem that exists alongside and separate from the cognitive problems we discussed last week. It is the same problem. The body is the cognitive environment. Compromise the body and you compromise the mind — not as a side effect, but as a direct consequence of the fact that they were never separate.
What did William James understand about emotion?
William James, the father of American psychology, proposed something in 1884 that still sounds counterintuitive: we do not cry because we are sad. We are sad because we cry.
The James-Lange theory — developed simultaneously by James and the Danish physiologist Carl Lange — reverses the commonsense sequence. The standard model: an event triggers an emotion, and the emotion triggers a bodily response. James said no. The event triggers the bodily response first — the accelerated heartbeat, the tensed muscles, the tears, the flushed skin — and the subjective experience of emotion is the brain's interpretation of those bodily signals.
For a century, this was treated as an interesting but probably wrong provocation. Then Antonio Damasio's somatic marker hypothesis added neurological evidence. Then interoception research — the study of how the brain reads internal body signals — showed that people with better interoceptive accuracy (more attuned to heartbeat, breathing, gut signals) experience emotions more intensely and regulate them more effectively. The body is not responding to the mind's commands. The mind is reading the body's state.
Follow this to its conclusion and the metabolic crisis becomes something different from how it is usually discussed.
If emotions are bodily states — if your mood, your motivation, your sense of possibility and agency are functions of what your body is doing at the cellular level — then a population with compromised metabolism is not just physically unhealthy. It is emotionally, cognitively, and motivationally compromised. The depression, the anxiety, the chronic low-grade despair that public health surveys keep measuring are not separate from the 93.2%. They are the 93.2%, experienced from the inside.
Change the biology. Consciousness follows. James said it. Merleau-Ponty's framework explains why. The metabolic data shows how far we have drifted from the conditions under which consciousness functions well.
How deep does 93.2% go?
We have cited this number twice now — Araújo et al., Journal of the American College of Cardiology, 2022. Five markers: blood glucose, blood lipids, blood pressure, waist circumference, absence of cardiovascular disease. 6.8% of American adults meet optimal levels on all five without medication. Let us go inside the cells and understand what that means for the body-as-mind that Merleau-Ponty described.
Mitochondrial dysfunction. Every cell except red blood cells contains mitochondria — organelles that convert nutrients and oxygen into ATP. Martin Picard's lab at Columbia has shown that chronic stress and poor metabolic inputs alter mitochondrial function at the genetic level. Compromised mitochondria produce less ATP and shift signaling toward inflammatory pathways. You experience this as fatigue that sleep does not fully resolve. The brain consumes 20% of the body's energy at rest. When mitochondrial output drops, cognition drops first.
Insulin resistance. Chronic exposure to high insulin — driven by blood sugar spikes from ultra-processed carbohydrates — makes cells progressively less responsive. Over 100 million Americans have diabetes or prediabetes. But insulin resistance begins years before diagnosis, silently impairing cognitive function, disrupting sleep, and increasing systemic inflammation.
Chronic inflammation. Metabolic dysfunction, gut permeability, excess visceral fat, and chronic stress all drive persistent low-grade immune activation. Elizabeth Blackburn and Elissa Epel's telomere research showed that chronic inflammation accelerates telomere shortening — caregivers under sustained stress showed cellular aging equivalent to an additional decade.
The loop is tight: processed food destabilizes blood sugar, which drives insulin resistance, which promotes visceral fat, which generates inflammatory signals, which impair mitochondria, which reduce energy, which degrade cognition, which reduce the capacity to make different choices. The loop closes. And Merleau-Ponty's point hits with full force: the body IS the mind's environment. The loop is consciousness degrading itself through its own biological substrate.
What created the loop?
Kevin Hall's NIH research produced the cleanest evidence on what ultra-processed food does. In his 2019 randomized controlled trial, participants eating ultra-processed diets consumed 500 more calories per day than those eating unprocessed food — even when both diets were matched for macronutrients, sugar, fat, and fiber. Same nutrition on paper. Radically different outcomes in bodies.
Fifty-five percent of American calories come from ultra-processed food. For children, 67%. Substances engineered for shelf life and repeat purchase, containing ingredients that did not exist a century ago. The digestive system, the microbiome, the insulin response — none were calibrated for this input.
Aristotle said eudaimonia requires material conditions. The material condition he took for granted — food that is actually food — is absent for the majority. You cannot actualize human excellence on a substrate of industrial chemistry. The $4.1 trillion American healthcare system is not producing health. It is processing the consequences of a food system that produces metabolic dysfunction by design.
What does the biological counter-movement look like?
Something is shifting. We have been tracking it across our coverage, and the numbers have moved from interesting to undeniable.
Forty-one million Americans have used a GLP-1 receptor agonist — semaglutide, tirzepatide, or similar. One in eight adults. We hold a position on GLP-1 drugs that may satisfy no one: they are a legitimate tool, not a solution. They address symptoms without changing the food environment that caused them. But for millions trapped in the loop — where degraded cognition prevents the choices that would restore cognition — they provide biological breathing room to start. Breaking the loop at any point creates conditions for breaking it everywhere.
Over 3 million people wear continuous glucose monitors without a diabetes diagnosis. You eat pasta and watch your blood sugar spike to 180 mg/dL. You eat salmon with vegetables and watch it hold at 110. The body teaches you directly — in a visceral language that bypasses dietary guidelines written by committees with food industry funding.
The biohacking market: $38 billion now, projected $216 billion by 2035. Oura Ring at $1 billion revenue. Eight Sleep at $1.5 billion valuation. These are infrastructure for biological self-knowledge — the interoceptive awareness William James identified as the foundation of emotional and cognitive life. People are building, with their own money, the feedback systems the medical model never provided. Merleau-Ponty would recognize this: the recovery of embodied self-knowledge.
What do degen and regen mean in cells?
We use these terms across our work to describe extractive versus regenerative patterns. In the metabolic context, they stop being abstractions and become measurable physiological states.
Degenerative biology: elevated cortisol, low vagal tone, shortened telomeres, impaired mitochondria, chronic inflammation, insulin resistance, disrupted sleep. A body consuming reserves faster than it rebuilds them. This is 93.2% at the cellular level.
Regenerative biology: regulated cortisol, high vagal tone, maintained telomeres, efficient mitochondria, resolved inflammation, insulin sensitivity, consolidated sleep. A body building surplus. Creation mode.
We should note: vagal tone measured via heart rate variability is a well-established biomarker, even though the broader anatomical claims of polyvagal theory remain debated. The measurement is solid. The explanatory model is still being drawn.
Both states self-reinforce. Degenerative biology impairs the cognition needed to reverse it. Regenerative biology improves the cognition that sustains it. The question is which direction you enter from.
What are we still learning?
We do not fully understand the interaction between metabolic health and psychiatric conditions. Christopher Palmer's work at Harvard linking mitochondrial dysfunction to depression, anxiety, and schizophrenia is striking but early. The field of metabolic psychiatry is young and the studies are small.
We are also uncertain about long-term GLP-1 effects across decades of use. And we do not know, with the precision we would like, exactly how much metabolic restoration is needed before cognitive function measurably recovers. The answer varies by individual. The research is moving fast. We will report what emerges without pretending to know more than the evidence supports.
What does Aristotle's requirement look like now?
Three episodes in. The picture is forming.
Aristotle said flourishing requires material conditions. The material conditions are metabolic. Merleau-Ponty said consciousness is embodied. The embodiment is cellular — mitochondria, insulin receptors, inflammatory markers, telomere length. William James said emotions are bodily states. The bodily states, for 93.2% of the population, are states of depletion.
The metabolic lie is not a conspiracy. It is a statistical illusion. When nearly everyone is metabolically compromised, the compromised state looks normal. When normal is pathological, anyone who restores baseline function appears enhanced. The lie is the word "normal" applied to a population in biological crisis.
The counter-movement — GLP-1 adoption, CGMs, biohacking infrastructure, metabolic psychiatry — is millions of people refusing the lie. Choosing to learn what their bodies are doing. Choosing to change the inputs. Choosing, in Merleau-Ponty's terms, to recover the embodied self-knowledge that the industrial food system and the Cartesian medical model collaborated to erase.
The Superhuman project lives here. Not in enhancement beyond human capacity, but in the reclamation of capacity that was always there and was systematically degraded. The body wants to regenerate. We have seen it, in our research and across our community — give the body better inputs and it responds. Often quickly. Often dramatically. The biology is not permanently broken. It is faithfully reflecting what it has been given.
Change what you give it. The body will change what it gives you back.
Next week, we turn to the single intervention the research ranks above all others for metabolic and cognitive restoration. It is not a supplement. It is not a drug. It is not a protocol. It is what happens — or fails to happen — between 10pm and 6am. And it is the foundation on which everything else in this series is built.