Inspired by:
Cohen, A. A., Picard, M., Beard, J. R., Belsky, D. W., Herbstman, J., Kuryla, C. L., Liu, M., Makarem, N., Malinsky, D., Pei, S., Wei, Y., & Fried, L. P. (2025). Intrinsic health as a foundation for a science of health. Science Advances, 11(25). https://doi.org/10.1126/sciadv.adu8437
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EXECUTIVE SUMMARY
Modern health systems are overwhelmed by chronic disease, burnout, mental illness, and multi-system dysfunction that defy reductionist explanation. This book argues that these conditions share a common root: the progressive failure of biological solvency — the capacity of living systems to generate energy, maintain coherence, resolve stress, and recover across time.
The book introduces the concept of Intrinsic Health, formalized as a dynamic field H(t), representing organismal adaptive capacity. Health is defined not as the absence of disease, but as the sustained ability to absorb physiological cost without collapse. Disease emerges when recovery fails, costs accumulate, and coherence across systems degrades.
Across nine integrated parts, the book traces a single regulatory loop:
- Energy and Organization: Mitochondrial function is presented as both energetic and informational infrastructure. Microtubules and cellular timing provide the phase stability that makes coordinated physiology possible.
- Prediction and Control: The brain is shown to regulate physiology through predictive processing. Autonomic control translates prediction into bodily action, determining whether the organism mobilizes, repairs, or conserves.
- Defense and Parameter Setting: Immunity and endocrine systems are framed as high-cost protective and gain-setting systems that reshape the entire physiological economy.
- Development and Trauma: Early-life conditions calibrate lifelong stress and recovery thresholds. Trauma is modeled as a durable physiological reconfiguration rather than a purely psychological event.
- Mechanical Biology: Fascia, posture, and load are treated as regulatory signals that continually shape autonomic tone, inflammation, and energy expenditure.
- Environment and Society: Light, noise, toxins, nutrition, microbes, labor conditions, poverty, inequality, digital media, and cultural narratives are shown to function as direct physiological forces.
- Intrinsic Health: Health is reframed as adaptive capacity rather than performance. Burnout and collapse are formalized as solvency failures, not moral or motivational deficiencies.
- Civilization and Design: Societies are modeled as extended nervous systems. Economic overdrive, institutional rigidity, and extraction logic generate collective dysautonomia and population-level disease.
- Synthesis: A unified narrative and minimal mathematical model integrate cellular bioenergetics, neural prediction, immune cost, endocrine gain, mechanical load, and socio-environmental forcing into a single field of solvency.
A clinician-facing diagnostic framework derived from H(t) is introduced to assess adaptive reserve at the bedside. In parallel, an Intrinsic Health Impact Assessment (IHIA) is proposed to evaluate how policies, institutions, and environments thicken or thin the health field of populations.
The central conclusion is that health is neither a commodity nor a static endpoint. It is a living, conserved capacity that depends on energy availability, coherence, safety, and time. Medicine, public health, and governance must therefore transition from a performance-driven, extractive paradigm toward a regenerative, solvency-preserving architecture.
The future of health — at the cellular, individual, and civilizational levels — is ultimately framed as a physiological choice between permanent defense and restored coherence.
