Synopsis

The article rates 9 out of 10 for factualness, based on its accurate representation of a peer-reviewed study on cognitive fatigue.

Evidence from neuroscience suggests that prolonged, intense thinking can lead to cognitive fatigue due to glutamate buildup in the brain’s lateral prefrontal cortex. In a study involving 40 participants performing demanding tasks over six hours, those in the high-effort group exhibited higher glutamate levels and a shift toward impulsive, low-effort decisions. While no targeted treatments exist, given glutamate’s ubiquity, regular breaks and quality sleep remain the best strategies for recovery and maintaining mental sharpness.

Article

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Cognitive fatigue: Why thinking hard makes us tired – Big Think

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