News > Why does thinking hard make us tired?
Why does thinking hard make us tired?
17/08/2022 09:28 PM | Click to read full article
Long periods of concentrated thinking can be draining, but it is unclear why this "cognitive fatigue" happens. Currently, a study team in Paris thinks they may have discovered the solution.
Hard mental labour modifies brain metabolism by causing the prefrontal cortex to accumulate glutamate, a neurotransmitter, according to a recent study that was published in the journal Current Biology.