ArticleSleep medicine: X2026
The Sentinel Sleep Theory: Unweaving the biological function of REM sleep.
Article in Sleep medicine: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
1 author.
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Abstract
The biological function of Rapid Eye Movement (REM) sleep remains one of neuroscience's great mysteries. In this theoretical research paper, I present the evolutionary theory that explains why REM sleep exists. I demonstrate that REM sleep functions to heighten brain alertness to significantly mitigate the high vulnerability inherent in non‑REM sleep-especially in deep sleep. Every organism with a nervous system must undergo non-REM sleep, a necessity that accompanies a negative and potentially lethal consequence: a higher risk of dying. Because non‑REM sleep substantially reduces alertness and increases the death risk, REM sleep evolved as an adaptive countermeasure, making it a
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.