Architecturally Mediated Allostasis and Neurosustainability

Architecturally Mediated Allostasis and Neurosustainability: A Proposed Theoretical Framework for the Impact of the Built Environment on Neurocognitive Health

Published in Brain Sciences, February 2025 | University of Cambridge & University College London

This paper from researchers at Cambridge and UCL presents a novel theoretical framework for how visual stressors in the built environment trigger neurophysiological stress responses that, over time, can impair cognitive health, emotional regulation, and mental wellbeing. It introduces the concept of “architecturally mediated allostatic load” — the cumulative physiological cost of chronic exposure to stress-inducing spaces — and connects it to neuroplasticity and neurogenesis in key brain regions including the hippocampus, prefrontal cortex, and amygdala.

Key Findings

• Chronic exposure to stress-inducing architectural features activates the HPA and SAM stress-response axes, potentially creating feedback loops that contribute to depression, anxiety, and cognitive decline over time.
• The built environment influences neurogenesis and neuroplasticity in the hippocampus, prefrontal cortex, anterior cingulate cortex, and amygdala — brain regions critical for memory, emotional regulation, and decision-making.
• The paper proposes “neurosustainability” as a design principle: creating environments that actively support neurocognitive health rather than simply minimizing harm, with biophilic design identified as a key strategy.
• Visual stressors (poor spatial complexity, lack of natural elements, harsh lighting) are identified as primary triggers of physiological stress responses in the built environment.
• The framework establishes testable hypotheses for future empirical research into how specific architectural choices — including the integration of nature — modulate neurobiological stress responses.

Future Directions

• Empirically validate the proposed mechanisms using neuroscientific methods (neuroimaging, cortisol measurement, EEG) in real architectural settings.
• Translate the theoretical framework into practical design guidelines for architects, urban planners, and public health professionals.
• Investigate how biophilic design elements specifically counteract allostatic load and support neurogenesis in applied settings.

Key takeaway: The built environment is not a neutral backdrop to human life — it is an active shaper of our brain health. This paper makes the scientific case for designing spaces that protect and promote neurocognitive wellbeing, positioning biophilic design as an essential public health intervention.