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Feb 26, 2024

Why Thinking Hard Makes You Tired

Posted by in category: neuroscience

Summary: Extended intense cognitive work causes potentially toxic byproducts to build up in the prefrontal cortex. This alters control over decision-making, causing a shift toward low-cost actions that require less effort as cognitive fatigue sets in.

Source: Cell Press.

It’s no surprise that hard physical labor wears you out, but what about hard mental labor? Sitting around thinking hard for hours makes one feel worn out, too.

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