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Cited by 353Stress Responses and CortisolHealth, psychology, and well-beingMedicine, History, and Philosophy

The DOI matches its Crossref record; 98 of the 98 references it cites were found in a registry or an index.

Principles of Allostasis: Optimal Design, Predictive Regulation, Pathophysiology, and Rational Therapeutics

Sterling, Peter·2004·Allostasis, Homeostasis, and the Costs of Physiological Adaptation
DOI 10.1017/cbo9781316257081.004
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Abstract

INTRODUCTION This chapter compares two alternative models of physiological regulation. The first model, homeostasis (“stability through constancy”), has dominated physiology and medicine since Claude Bernard declared, “All the vital mechanisms … have only one object – to preserve constant the conditions of … the internal environment.” His dictum has been interpreted literally to mean that the purpose of physiological regulation is to clamp each internal parameter at a “setpoint” by sensing errors and correcting them with negative feedback (Fig. 1.1; Cannon, 1935). Based on this model, physicians reason that when a parameter deviates from its setpoint value, some internal mechanism must be broken. Consequently, they design therapies to restore the “inappropriate” value to “normal.” The homeostasis model has contributed immeasurably to the theory and practice of scientific medicine, so to criticize it might almost seem absurd. Yet all scientific models eventually encounter new facts that do not fit, and this is now the case for homeostasis. In physiology, evidence accumulates that parameters are not constant. Their variations, rather than signifying error, are apparently designed to reduce error. In medicine, major diseases now rise in prevalence, such as essential hyper-tension and type 2 diabetes, whose causes the homeostasis model cannot explain. For in contrast to the hypertension caused by a constricted renal artery and the diabetes caused by immune destruction of insulin-secreting cells, these newer disorders present no obviously defective mechanism. Treating them with drugs to fix low-level mechanisms that are not broken turns out not to work particularly well. The chapter expands on each of these points. The second model, allostasis (“stability through change”), takes virtually the opposite view. It suggests that the goal of regulation is not constancy, but rather fitness under natural selection. Fitness constrains regulation to be efficient, which implies preventing errors and minimizing costs. Both needs are best accomplished by using prior information to predict demand and then adjusting all parameters to meet it (Fig. 1.1).

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Metadata

Authors
Sterling, P.
Affiliations
University of Pennsylvania (US)
Corresponding author
Sterling, Peter
ORCID
Sterling, Peter
Venue
Allostasis, Homeostasis, and the Costs of Physiological Adaptation
Publisher
Cambridge University Press
Published
2004-10-25
Pages
17-64
DOI
10.1017/cbo9781316257081.004
OpenAlex
W2303400061
Cited by
353
References
98
Citations by year
2026: 7 · 2025: 35 · 2024: 17 · 2023: 21 · 2022: 9 · 2021: 18 · 2020: 15 · 2019: 27 · 2018: 14 · 2017: 19 · 2016: 20 · 2015: 22 · 2014: 22 · 2013: 17 · 2012: 22
FWCI
13.11
Type
book chapter
Language
en
Open access
closed
Licence
www.cambridge.org/core/terms (unspecified, 3755 d)
Locations
Cambridge University Press eBooks (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Health Professions › General Health Professions › Health, psychology, and well-being
  • Social Sciences › Arts and Humanities › History and Philosophy of Science › Medicine, History, and Philosophy
Keywords
allostasis, homeostasis, physiological regulation, set point, negative feedback, essential hypertension, type 2 diabetes, pathophysiology, rational therapeutics, internal environment

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