Open Access
CC BY 4.0 · Semin Neurol 2025; 45(03): 305-316
DOI: 10.1055/a-2566-4073
Review Article

Sleep as the Foundation of Brain Health

Abubaker Ibrahim
1   Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
,
Birgit Högl
1   Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
,
Ambra Stefani
1   Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
› Author Affiliations

Funding None.
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Abstract

Sleep is a vital function, taking about one-third of a human lifetime, and is essential for achieving and maintaining brain health. From homeostatic neurophysiology to emotional and procedural memory processing to clearance of brain waste, sleep and circadian alignment remain paramount. Yet modern lifestyles and clinical practice often dismiss sleep, resulting in profound long-term repercussions. This chapter examines the roles of sleep and circadian rhythms in memory consolidation, synaptic plasticity, and clearance of metabolic waste, highlighting recent advances in neuroscience research. We explore how insufficient and disordered sleep—a public health concern—can impair cognition, escalate neurodegenerative risks, and compromise neurovascular integrity, thereby impacting brain health. These findings underscore the need for comprehensive screening for disturbed sleep and targeted interventions in clinical practice. Emerging interventions and AI-driven technologies may allow early detection and personalized and individualized treatments and improve outcomes. Overall, this chapter reaffirms that healthy sleep is indispensable at any level of neurological disease prevention—on par with the role of diet and exercise in cardiovascular health—and represents the foundation of brain health.



Publication History

Accepted Manuscript online:
26 March 2025

Article published online:
25 April 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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