EVIDENCE CLAIM
Physiological stability is maintained through dynamic regulation and adjustment to changing demand, not fixed stillness.
- Evidence category
- Established operating principles
- Claim type
- Mechanistic
- Last reviewed
- August 11, 2026
This page isolates one claim from the wider argument of The Human OS Manual.
The classification describes the evidence supporting this claim, not the Human OS framework as a whole.
What the evidence supports
Sterling describes allostasis as predictive regulation, while McEwen describes stress mediators as adaptive in the short term and potentially damaging when activation is repeated or prolonged. Together they support a dynamic rather than static view of physiological regulation.
What it does not establish
These sources do not validate the Human OS module architecture or imply that the body seeks one permanently calm state.
Context
The current Notes use Sterling and McEwen to support dynamic and anticipatory regulation. This replaces the older working-pass Chapter 5 source pairing and keeps the claim below the level of the Human OS architecture.
Evidence classification
Established operating principles
Broad, mature principles of human biology, behavior, or regulation supported across a substantial body of research.
Sources
Sources are listed according to the role they play in this claim. One source may provide direct support, another may explain a mechanism, establish a limitation, or prevent an interpretation from becoming broader than the evidence allows.
Primary support
Peter Sterling, “Allostasis: A Model of Predictive Regulation,” Physiology & Behavior 106, no. 1 (2012): 5–15, https://doi.org/10.1016/j.physbeh.2011.06.004.
journal article · theoretical paper
Supports predictive regulation and anticipatory adjustment to demand.
Supporting evidence
Bruce S. McEwen, “Protective and Damaging Effects of Stress Mediators,” New England Journal of Medicine 338, no. 3 (1998): 171–179, https://doi.org/10.1056/NEJM199801153380307.
journal article · narrative review
Supports dynamic stress regulation and the distinction between adaptive short-term responses and damaging repeated activation.
Where this appears in the book
The printed book preserves the claim inside the argument that gives it meaning. These references connect the current digital record to the first-edition evidence trail.
Chapter 5: The Human OS: How the System Is Structured
Stability is maintained through dynamic regulation rather than fixed stillness. · First edition, 2026
Human OS connections
This claim connects to the following parts of the Human OS architecture. The module labels locate the claim inside the framework; they do not imply that the research source validates the architecture itself.
Read the argument in context
The Evidence Map separates one claim from the wider architecture. The Human OS Manual connects the evidence across biology, behavior, environment, recovery, adaptation, relationships, and time.