Beyond the absence
of disease.

A person may have no identified disease and still have questions about sleep, energy, recovery or physical function. A person living with a diagnosed condition may have the same questions alongside treatment.

What disease must we not miss? What would support a healthier physiological state?

Diagnosis, prevention and treatment are indispensable. Health Optimization Medicine and Practice (HOMe/HOPe), developed by Dr. Theodore Achacoso, adds an explicit physiological health objective: understanding, assessing and optimizing the conditions on which health depends.

The shift from pathogenesis to salutogenesis changes the question being asked. It does not separate people into “healthy” and “diseased” groups, or imply that ordinary clinical care has no interest in health.

The lecture uses the stethoscope as a reminder that what medicine can observe helps shape what it can ask. That metaphor motivates inquiry; it does not confer the same validation on a new framework or measurement.

Before we can optimize health, we have to ask: the health of what?

Start with the person. Follow the organization through organs, tissues and specialized cells, then into the machinery those cells share.

A neuron, a muscle fibre and an intestinal epithelial cell do different work. Each depends on cellular organization, metabolism and regulation. The framework’s “basic cell” describes that shared foundation, rather than a separate anatomical precursor or a claim that mature cells are identical.

01Human organism

02Organ systems

03Organs

04Tissues

05Specialized cells

06Shared cellular foundation

07Organelles and molecular machinery

A SHARED FOUNDATION

Neuron

Communication and electrical activity

Muscle fibre

Force and movement

Intestinal epithelium

Barrier, absorption and transport

Different roles. Shared cellular machinery and mechanisms.

Specialization includes producing, consuming, transforming, storing, transporting, sensing, conducting, generating force and maintaining barriers. Understanding a network means following what happens between cells as well as inside them: source, transfer, transformation, response and removal or recycling.

From organology to holobiontology

The human host also lives in relationship with associated microorganisms. HOMe calls attention to this ecological perspective through holobiontology: host, microbial communities and their interactions.

The question becomes specific: what is produced, transformed, transported, sensed or removed? A microbial association alone does not establish a diagnosis, benefit or cause of symptoms.

This living system continuously exchanges matter, energy and information with its surroundings.

Light, food, air, temperature, movement, relevant exposures and social circumstances form part of the clinical context. So do the time of day, the duration and sequence of events, and the organism’s stage of life.

The same observation can mean different things under different conditions. A laboratory concentration without its collection context can leave an important part of the question unanswered.

An evolutionary perspective then asks why a response may have developed: inherited organization, conserved regulation, adaptation, trade-offs and possible mismatch with current conditions. In the lecture, master regulatory genes and epigenetic pathways help frame these questions. They are not a single switch that determines health.

These ways of locating the person form the framework’s three scales.

A sample from blood, urine or stool is information about the system, not a direct reading of every cell. An evolutionary explanation is a source of hypotheses, not independent proof that a particular intervention is appropriate.

We have described the system. Now we need to define the state we are trying to support.

Achacoso’s operational definition is:

“Health is an optimal physiologic state characterized by the absence of disease and the maintenance of balance between anabolism and catabolism according to the cycle of life of the organism.”

The mnemonic is A + B + C.

Balance is a relationship, not a fixed amount

Anabolism and catabolism concern synthesis, breakdown, turnover and resource use. Their appropriate relationship varies across tissues, time and life stage. A stable concentration does not automatically establish appropriate turnover.

This also separates health from fitness for a particular task. The adaptations needed to run a marathon do not, by themselves, establish the whole physiological state described by this definition.

Someone with an established disease may still benefit from addressing a separate physiological question. Improving selected aspects of health does not establish that the disease has disappeared; the two care plans remain coordinated.

Maintaining and renewing this organization requires energy. How does cellular work become possible?

Cells need organized machinery and the energetic processes through which that machinery can work. The developing Energy–Structure account makes their reciprocal relationship explicit.

Nucleus and cytosol contribute to cellular organization, biosynthesis and specialized products. Mitochondria are central to much of aerobic energy transformation, alongside other metabolic pathways. Chromatin, signaling and other regulatory processes connect cellular activity with changing conditions.

Organization is maintained through activity.

Genetic information, transport, synthesis, repair and turnover belong to one account of a living cell. Structure enables energetic activity; energetic activity supports structural maintenance and renewal.

The clinical question is whether the system has the resources and conditions it needs, and whether its response is appropriate to the situation.

Optimization is not indiscriminate acceleration of cellular activity. A justified response may involve addressing a contributing condition, investigating further, intervening—or leaving an appropriate response undisturbed.

These activities occur through metabolism. Can we observe aspects of the current biochemical state?

Metabolites are small molecules involved in biological processes. Metabolomics examines selected molecules, patterns and relationships in samples, offering one window into biochemical state.

The stethoscope metaphor points to the value of observation. It does not mean that a panel hears the whole organism, reveals every pathway, or establishes which intervention will help. A review of metabolomics discusses both clinical possibilities and translational challenges.

Genetic information, gene expression, proteins and metabolites describe different aspects of the same system. Direct and functional measurements also answer different questions. Their usefulness depends on specimen, method, reliability, context and intended clinical use.

Keep observation separate from interpretation

A result may be directly measured, calculated, interpreted or still unknown. Each claim should stay in its proper category.

Patterns and ratios can prompt questions about related processes. A clinician still has to consider alternative explanations and whether the information changes a useful decision. Analytical and clinical validation are questions about the measure and its intended use, not labels that transfer automatically to an entire care strategy.

Once we can observe something, the next question is what it helps us understand—and how far upstream that understanding reaches.

The lecture distinguishes ongoing metabolic processes, accumulated damage and established pathology. These are different questions and possible intervention points within the same person’s care.

Different diagnoses may share some upstream mechanisms without becoming the same condition. Diagnosis identifies a clinical problem requiring appropriate care; a physiological formulation asks which processes and relationships matter in this particular person.

A network example: the Cell Danger Response

The Cell Danger Response (CDR) is included within HOMe’s Evolutionary Medicine pillar. The proposed model considers coordinated changes in metabolism, structure, gene expression and communication during stress and recovery.

It shifts the question from only “which value is high or low?” to “what state is the cell operating in, and why?” Defense may be appropriate. Rebuilding, remodeling and resolution can have different requirements.

A routine metabolomic panel does not, by itself, diagnose a CDR phase or identify the cause of a person’s symptoms. Phase-specific intervention requires its own evidence and clinical justification.

Understanding these relationships takes more than one scientific perspective.

The pillars organize interconnected scientific perspectives. They are not seven compulsory tests, seven treatment packages, or a claim that these headings exhaust biology.

Together, they connect biochemical observations with energy, host–microbial relationships, exposures, expression, timing and evolved responses.

The standard is a traceable connection:

Clinical question → Relevant biology → Suitable observation → Supported interpretation → Appropriate action

If optimization has a direction, the next question is: compared with what?

Optimization concerns a feasible improvement toward a declared objective, within the constraints that matter. It is not maximization of every concentration, pathway or intervention.

A laboratory reference interval, a diagnostic threshold, a treatment target and an optimization comparator perform different jobs.

The source-defined reference strategy

Achacoso’s comparison is the 50th–75th percentile at ages 21–30, or evolutionarily derived values. In the framework, this gives direction to metabolic neotenization: shifting selected, related metabolomic values toward a declared reference.

This is the perspective shift from geriatrization to neotenization. Its clinical methods include ratio correction and network-wide range shifting.

A usable comparator requires an exact analyte, specimen, method, unit, source population and collection context. The young-adult comparison and the person’s cycle of life answer different questions: one supplies a reference; the other determines physiological appropriateness.

A clinician may document a difference and still decide that intervention is unsupported, premature, inappropriate or unsafe. Context, evidence, interactions, preferences and burden constrain what should be done.

A reference becomes clinically useful only when it is connected to an accountable decision process.

The canonical method is Measure → Compare → Balance, continued through reassessment. It begins with the person and the clinical question, rather than a predetermined laboratory bundle.

Begin with the person

The assessment includes the reason for consultation, medical history, current care, symptoms, nutrition, activity, recovery, timing, exposures and life-stage context. Existing records are reviewed before further investigations are selected.

Build a supported interpretation

Important observations are linked to a reference, physiological meaning, alternative explanations and possible decision consequences. What is measured remains distinct from what is inferred or unassessed.

Construct one integrated plan

Ratio correction addresses specified relationships among biologically related measurements. Network-wide range shifting coordinates selected interventions across a defined subnetwork.

A plan may include nutritional, behavioral, environmental or timing changes, selected nutrient or bioactive support, and medically indicated treatment. Each action needs a rationale, responsible practitioner and review condition. Necessary disease treatment must not be delayed to follow an optimization hierarchy.

Let the response change the plan

Follow-up asks about the intended biochemical relationship, the physiological interpretation, patient experience, adverse effects and practical burden. The next decision may be to continue, modify, simplify, stop, investigate further or refer.

A useful plan must also be feasible in daily life. Reassessment is not simply an opportunity to add more interventions. Where specialized monitoring adds little, ordinary follow-up may be the better course.

The immediate objective is health. The larger ambition is more life lived in health.

HOMe’s primary objective is health optimization, rather than longevity as an isolated number. Achacoso distinguishes healthspan and quality of life from quantity of life, describing any resulting longevity as a beneficial side effect.

The wider ambition relates to morbidity compression: reducing the duration or proportion of life spent with illness or disability. The concept is associated with Fries’s 1980 account.

Physiological health, lived quality of life, healthspan and lifespan remain distinct outcomes. Improvement in one does not automatically establish a change in another. This ambition is not a reported HOMe trial outcome, an individual prediction or a guarantee of longer life.

The connected ideas can now be brought together in one organizing map.

The map summarizes ideas already encountered: the objective, the person in context, the changes in perspective, the scientific windows and the practical keys.

Measure → Compare → Balance belongs to the clinical method within Medicine and Practice. The map’s final three keys are Evolutionary Lens · Energy Model · Balance.

The Energy–Structure account, expanded clinical pathway and developing measurement approaches add detail beneath this source-defined structure; they do not replace it.

Health optimization and disease management may operate alongside one another. Their distinction is the clinical objective, rather than exclusive ownership of nutrition, medicines, careful assessment or follow-up.

Consider a person taking medicines for established indications who also has concerns about energy, digestion or recovery. A coordinated assessment first establishes why the treatments were prescribed and which benefits must be preserved. It then investigates the unresolved concerns without assuming a single explanation.

This is an illustrative shared-care example, not a reported patient outcome or a recommendation to change medication. Each investigation and prescription requires clear professional responsibility.

HOMe is described by Achacoso as Evidence-Informed Medicine or Evidence-Informed Individualized Care. Individualization means evidence, observations and context inform decisions; it does not remove the need to examine their consequences.

A pathway explanation, a reliable assay, an optimization reference, a composite index and a complete care strategy each require evaluation of their own claims. A favorable biomarker change is not automatically a patient-relevant benefit.

Proposed research can include longitudinal observation, suitable N-of-1 studies, focused physiological investigation and trials of clearly specified individualized decision strategies. Necessary care, safety and ethical responsibilities remain part of the design.

Further developments and deeper reading

The lecture’s central sequence is the starting point. The following material describes newer conceptual or measurement developments and additional clinical detail. These ideas do not inherit validation merely by sharing the framework’s terminology.

The Institute for Health Optimization Medicine connects education, research and clinical translation. Its purpose is to make the framework understandable, its claims available for scientific examination, and its application accountable to clinical responsibility.

The educational vision is Integrated Medical Sciences: Health, Disease, and Care: understanding the conditions that maintain health, recognizing and treating disease, and supporting appropriate recovery and long-term care with the same scientific rigor.

Sources and context

This account follows the narrative and organizing structure of the lecture Beyond the Absence of Disease, alongside the Institute’s developing explanation of the framework. Original responsive diagrams have been prepared for this page; they are conceptual teaching aids, not patient data.

External readings linked above provide scientific context. They do not, by themselves, validate every HOMe comparator, intervention, index or clinical strategy.

Medical information

This page explains the HOMe/HOPe framework and its development. It does not provide an individual diagnosis, treatment plan or instruction to change medication. Assessment and intervention must be appropriate to the person and delivered within the responsible practitioner’s competence and professional scope.