Taken to the extreme - I used to multi-table online poker for a living. 5 hours pretty much turns your brain to mush. 8 hours straight is unthinkable.
Pretty much everyone experiences this, even 18-year-olds. The brain has its limits.
Pretty much everyone experiences this, even 18-year-olds. The brain has its limits.
Normally though, time pressure or "get shit done" pressure gets the better of me, and my brain goes into turbo mode. After about 30 minutes of that, the rest of the day is more or less standby mode