HomeHealth NewsWhen more blood does not mean more neuronal energy during REM sleep

When more blood does not mean more neuronal energy during REM sleep

August 3, 2026

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The energy paradox of REM sleep. During REM sleep, brain blood volume and astrocytic pyruvate increased, whereas neuronal ATP decreased. The opposing responses suggest that increased vascular delivery does not necessarily translate into greater energy availability inside neurons. Credit: Yusuke Takahashi, Yoko Ikoma and Ko Matsui, Tohoku University

REM sleep is already called “paradoxical…

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When more blood does not mean more neuronal energy during REM sleep

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