Taking a test requires significant mental energy expenditure, causing fatigue after 3-4 hours of testing despite no physical activity, because thinking itself consumes ATP.
causalpending
Speaker
Richard CytowicEvidence Quote
“So, for example, if you have to go take a test, you're not doing anything. You're just thinking. But at the end of 3 or 4 of our tests section, you're really beat. You're tired because you have expended a lot of mental energy.”
Created: 8/12/2026, 6:39:44 PM
My Notes
Loading notes...