A practical view of longevity

Let me clear away the biggest misunderstanding first. When most people hear the word longevity, they think about living longer. I think about living better. The number that matters to me is not lifespan but healthspan — the years we live with energy, clarity, mobility, autonomy and the capacity to contribute. We have become very good at adding years and very poor at keeping them worth living: on average, people now spend close to a decade at the end of life managing illness and dependence. That gap is the real crisis, and it is why I have said the same thing for over ten years — our goal is to add life to years, not just years to life.

Chasing a bigger number on the candle is, to me, a small ambition. The real prize is to compress illness into as short a window as possible at the very end, so that almost all of life is lived fully. Longevity, properly understood, is not about postponing death. It is about expanding life.

Ageing is natural and universal, but it is also a remarkably modifiable process. Your genes are not your destiny: your DNA is the script, but your lifestyle is the director. Genetics may set the ceiling; how close we come to it is decided every day by how we sleep, eat, move, manage stress and live. I have identical twin sons; if one lived on fried food and the other on vegetables, their health would diverge completely, whatever their shared code. I find this profoundly empowering, and I want more people to feel it: we are not passengers in our own ageing.

Science now lets us see the machinery. Beneath the diseases we fear most — cardiovascular disease, cancer, neurodegeneration and metabolic collapse — runs a single, quiet thread: chronic, low-grade inflammation that smoulders for years with no pain and no warning. Disease is not an event; it is a long, silent continuum — and there is a window, before the point of no return, where we can still change its course. This is the whole logic of prevention. Conventional medicine is brilliant at fighting fires; longevity medicine is about fireproofing the house. And I hold one more conviction here, almost old-fashioned in a field enchanted by the exotic: the everyday fundamentals — sleep, movement, real food, managing stress — are not the boring part of longevity. They are the medicine.

Here is where I part company with much of the market. Longevity is a system, not a supplement — not a test, a treatment, a molecule, a device or a one-week programme. The difference is made by integration. We build on four pillars — medical care, nutrition, movement and wellbeing — and I insist on all four, because health is a system and no single pillar works alone. The best medicine will not save a person who never sleeps; no amount of rest will clear an artery; perfect nutrition cannot compensate for a body that never moves.

Personalisation, for me, is not a marketing word; it is a medical necessity. We look alike on the surface and are profoundly different underneath — so the plan must be built around the individual, not the average. But measurement is never data for data’s sake. A number matters only when it produces action — and it should reduce a person’s confusion, not manufacture their anxiety. A serious longevity strategy is shaped like a circle rather than a line — assessment, personalised intervention, follow-up, and again. There is no magic pill. The most advanced therapies I know amplify good foundations; they do not replace them.

If longevity were a matter of information, it would already be solved. Almost everyone already knows they should sleep more, move more, eat better and worry less; the world does not suffer from a shortage of health advice — it suffers from a shortage of change. This, to me, is the true frontier, and it is why I treat the mind as seriously as the body. Willpower alone is a poor foundation — it is a sprint, not a marathon. Lasting change comes from habits, from environment, from identity, and from self-compassion after the inevitable slip. Above all it comes from consistency, because consistency beats intensity, in health as in life.

The most durable change I know is identity-based — not “I want to lose ten kilos,” but “I am becoming the kind of person who takes care of himself.” When the behaviour becomes who you are, willpower is no longer the point. And the mind is more than the engine of our habits: optimism, purpose, curiosity and a sense of agency leave measurable marks on how we age. The longevity mindset is not soft. It may be one of the most powerful medicines we have. Everything we do, in the end, is an attempt to answer a single question: how do we move a person from information to transformation?

I love technology, and we use the most advanced tools we can — genetics, epigenetics, biomarkers, imaging and, increasingly, artificial intelligence, which can see patterns in our biology that no physician could ever hold in their head. AI will make prevention far more precise and far more personal. But this field teaches you something, if you stay humble enough to learn it. No algorithm, however brilliant, transforms a person. People change because another human being listens to them, understands them, earns their trust and walks beside them. An AI can calculate the perfect diet for your genome; you still have to choose to follow it, and someone still has to help you want to.

So I think of technology as a co-pilot and a compass — an accelerant of human care, never a replacement for it. The deepest luxury in health is not a machine or a molecule; it is care, attention and time, given by people who genuinely want you to get better. The doctor becomes less an authority who treats and more a guide who interprets and accompanies; the data informs the decision without ever making it; and the person moves from passive patient to active partner in their own longevity.

Longevity has become a loud, crowded and often dishonest field — full of miracle cures, escape-velocity fantasies and beautifully packaged hope. My answer to all of it is discipline. We must trade in proof, not promises — in method, not miracles. I admire the audacity of those who dream of conquering death, and their ambition has poured real energy and money into research. But I am sceptical of anyone who glosses over how staggeringly complex a human being is, or who promised that immortality was two or three years away and is still saying it today. The honest posture is optimism grounded in realism.

It also demands honesty about our own tools: most supplements do far less than their labels claim; powerful new drugs such as the GLP-1s are bridges, not destinations; and the pursuit of sensational shortcuts must never make us forget the basics of good medicine. Innovation, yes — but innovation with integrity, resting on foundations, anticipating its own consequences, and never confusing what is new with what is true.

Two convictions close my thinking. The first is that longevity cannot be a moment; it must be a relationship. A stay, a test, a programme is only a turning point — the real work is the continuous, lifelong companionship that helps a person change their trajectory over years, not days. The harder, still-unfinished task — and the one I care about most for the next decade — is to remain meaningfully present in someone’s life long after they have left us, turning a beautiful memory into lasting transformation.

The second is one people do not always expect from someone who runs a clinic like mine. Longevity cannot remain a privilege of the few; it must become accessible to the many, or it is not a success worth having. I say it honestly: you do not need to come to Clinique La Prairie to begin. What starts at the frontier travels — genetic testing that cost a hundred million dollars at the dawn of this century now costs a few hundred — and it becomes affordable faster than people expect. The real inequality is not access to a luxury clinic. It is access to early detection, trusted guidance and healthy habits.

Strip away the diagnostics, the pillars, the technology and the ambition, and one question remains — the one I always return to. What is the value of extra years if they are empty of purpose or joy? I am not interested in length for its own sake. I am interested in depth. The point of all this — every biomarker, every intervention — is not molecules or telomeres; it is more time with the people we love, more capacity to keep learning and creating and contributing, more life that is actually lived. Longevity is a means; a fuller human life is the end.

I try to live all of this myself, imperfectly — an hour each morning for movement and meditation, journaling and visualisation, consistency over intensity, and the same fundamentals I ask of everyone else. There are few lives more stressful than those of a CEO, a senior manager or an entrepreneur. That is precisely why these practices matter. They are not a luxury or a wellness ritual; they are part of what enables us to sustain clarity, energy and perspective over the long term. Not a longer wait for the end, but a deeper, stronger, more human way of being alive. The best, I am convinced, is yet to come.