alt Hacker News>Contrary to the common myth, thinking hard does not burn significantly more calories. (Demonstration: Start thinking hard, and watch as your heart rate does not increase.)
this is wrong [0] , it's just hard to measure.
Replies
Aurornis • today at 4:31 PM
The original claim is not wrong. Thinking hard does not burn significantly more calories.
If it’s really hard to measure because the amount is so small that it requires precise equipment, it’s not significant relative to the rest of the body’s energy expenditure.
Interesting. I had heard that chess players burn a crazy amount of calories during tournament matches, but when I looked it up just now it seems like that isn't true: https://statmodeling.stat.columbia.edu/2025/06/30/its-sapols...