The word has a serious lineage, even if the marketing has blurred it. Open Dorland’s Illustrated Medical Dictionary, the standard reference of medical language, and health is defined as “a state of optimal physical, mental and social well-being, and not merely the absence of disease and infirmity.” And Halbert Dunn, the US government’s chief health statistician, sharpened it further in the American Journal of Public Health: high-level wellness is an integrated method of functioning, oriented toward maximising your potential. Notice what both definitions are about: not how you feel on a given morning, but how well you function, and in which direction.
Why is wellness a capacity, not a mood?
Modern research keeps arriving at the same place. Penn’s Martin Seligman, founder of positive psychology, showed that flourishing is not the mere absence of mental illness. It is a positive presence of engagement, meaning and accomplishment, with measurable health correlates. The CDC counts well-being as a public-health outcome in its own right. Across all of it, the operational core is the same: wellness is capacity, the reserve your body and mind can actually draw on when life asks something of you. In our vocabulary: integrity, function and adaptability, how well your body and brain actually work, and how readily they adapt.
Why is the nervous system at the centre?
Why does Nervous System Care talk so much about wellness? Because capacity is coordinated, and the coordinator is your nervous system: your Master Regulator through which movement, digestion, recovery, immunity and attention are orchestrated. When that regulation is flexible, the whole turns smoothly, like a wheel moving freely; when it is stuck in recurring cycles of pain, stress, fatigue and frustration, every system pays. This is why how you move, eat and think each matter, and why the system underlying all three matters most. Wellness, functionally defined, is a Whole-Person property. It cannot be assembled one part at a time.
Where did the word come from?
The word is far older than the industry selling it. The Oxford English Dictionary traces “wellness” to the middle of the seventeenth century, where it meant nothing more elaborate than the opposite of illness, the state of being well. Then it sat almost unused for three hundred years. What revived it was not marketing but public health. Halbert Dunn’s lectures of the late 1950s, gathered into his 1961 book High-Level Wellness, gave the word a technical meaning for the first time. In 1975 an American physician, John Travis, opened what is generally regarded as the first wellness centre, in Mill Valley, California: a place you attended not to have something found wrong with you, but to have how well you were functioning actually assessed. Two years after that, Bill Hettler and colleagues founded the National Wellness Institute at the University of Wisconsin–Stevens Point and published the six dimensions model, physical, emotional, intellectual, social, occupational and spiritual, still the field’s common vocabulary. The word arrived with a definition attached. The price tag came later.
What had the World Health Organization already said?
Dunn was not writing in a vacuum. The founding constitution of the World Health Organization, signed in 1948, opens with a sentence that was radical then and is still ahead of most practice now: health is “a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.” Nearly eight decades later, the systems built on that constitution measure themselves almost entirely by the second half of the sentence, cases found, diseases managed, deaths deferred. All of it necessary, none of it the first half.
And the first half has almost no infrastructure behind it. There is no waiting room you sit in because you are well and would like to be weller, no standard appointment for a person with nothing wrong. That vacuum is what the wellness industry rushed into, and it is the space we built the Centre to occupy properly: with definitions, methods and measurements rather than merchandise.
Why is “not sick” such a low bar?
Emory sociologist Corey Keyes put numbers to the problem. Analysing a national sample of American adults for the Journal of Health and Social Behavior, he found that only about one in five met the criteria for flourishing. Very few of the rest were mentally ill. Most occupied the large middle he named languishing: functioning, coping, getting through, but without the engagement, purpose and vitality that flourishing describes. Languishing is not a diagnosis, and that is exactly what makes it durable: nothing shows up, nothing gets flagged, and years pass in a state people privately describe as “fine”.
The physical equivalent is just as common, and works the same way. The body is built with substantial reserve, spare capacity in nearly every system, and reserve is spent silently. A great deal of it can go before any threshold is crossed, which is why a first symptom is so often late news rather than early warning. “Nothing wrong” and “plenty in hand” are not the same statement, and only one of them is worth building a life on.
Why does the definition change the care?
Definitions are not decoration. A definition sets the question; the question sets the measurement; and the measurement decides when you are allowed to stop. Define health as the absence of disease and the question becomes “what is wrong?”, the measurement becomes a test with a normal range, and you stop when the test comes back clear. Define it as Dunn and the World Health Organization did, as functioning toward potential, and the question becomes “how well is this working, and in which direction?” The measurement becomes capacity, and there is no natural stopping point, because there is always more function available than a person currently has.
Neither definition is wrong. They simply build different buildings. Almost the whole of modern healthcare is built on the first, and built superbly. It is the reason most of us survive to have this conversation at all. Very little is built on the second. That is not a criticism of medicine. It is a description of a gap.
It also explains a particular kind of frustration that brings people to us. Being told that nothing is wrong when you do not feel well is not reassurance; it is being answered in a vocabulary that cannot express your question. “Your results are normal” is a true and complete answer to “what is wrong?” It is not an answer to “why am I running on empty?” The second question needs a different definition of health before it can even be asked properly.
Is wellness the same as feeling good?
No, and conflating the two does real damage. Well-being research has long distinguished the hedonic kind, which is about feeling good, from the eudaimonic kind, which is about functioning well, with meaning and direction. Richard Ryan and Edward Deci’s review of that literature makes the point that the two overlap but come apart often: people in the middle of demanding, meaningful work frequently report low momentary pleasure alongside high life satisfaction, and the reverse is at least as common.
Wellness as we use the word is the second kind, together with the physical capacity underneath it. It is not a requirement to feel good all the time, and it does not mean a life without difficulty. It is the capacity to meet what actually arrives, including grief, effort, pressure and loss, without being emptied by it. Any definition of wellness that has no room for a hard week is not describing a human being.
Can wellness actually be measured?
A definition that cannot be measured is a slogan, and this is the point at which the wellness industry usually declines to follow its own founders. The serious end of the field has kept working. Function leaves traces, and several of them are now well validated as markers of capacity rather than disease: grip strength predicted mortality across seventeen countries in the Lancet’s PURE study, more strongly than systolic blood pressure; how quickly you walk carries prognostic information in older adults; how easily you get down to the floor and back up again has been studied the same way. Heart rate variability indexes something different but related, how flexibly your nervous system moves between effort and recovery.
Notice what none of those measure. Not a disease, not a symptom, not a complaint. Each one is a reading of how much capacity a person has to spend: which, defined properly, is precisely what wellness is.
How does Diskin Life put its definition of wellness to work?
Premium Vitality is our version of wellness, wellness with a definition, a method and a measurement. The definition: capacity above the waterline, not just the absence of complaint. The method: gentle Nervous System Adjustments supporting the regulator itself, alongside the 13 Vitality By Design presentations, including The Vitality Shift, which explores the eight components of wellness, so daily life points the same way the care does. The measurement: the Life Assessment so wellness is tracked against your own baseline rather than asserted. “Premium” is not a price point. It is a degree: the difference between not-sick and genuinely, functionally well.
General information only, not a diagnosis or personal health advice. For questions about your health, please also speak with your GP.