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"...so the brain uses roughly 300 calories. “There are good, sophisticated studies that show that concentrated mental activity, like doing a difficult multipli
by xiaoma 18y ago
"...so the brain uses roughly 300 calories.
“There are good, sophisticated studies that show that concentrated mental activity, like doing a difficult multiplication problem in your head, increases the glucose uptake to the brain,” he said. By how many calories? Less than, say, 20 calories of the 300, he estimated."
If it's an increase of 20 calories, then why is the total still 300?
- pasbesoin 18y agoMaybe I'm fooling myself, but I definitely notice/perceive the need for glucose after extended concentration. Whether from a longer respite and a good meal, or from a modest intake of something like soda. With the latter, though, it is difficult to keep from overindulging and inducing a sugar buzz/crash cycle.
- pgebhard 18y agoYeah, I agree. When I took long tests like the SAT or college final exams, I definitely noticed the drain. I needed some sugary drink/candy (or just beer) afterward, for sure.