> Maybe forcing people to work in 2 or 3 hour sessions, and ask them to go walk for 15min, might have some positive effects. It's kind of funny that you put it

> Maybe forcing people to work in 2 or 3 hour sessions, and ask them to go walk for 15min, might have some positive effects. It's kind of funny that you put it this way because that is exactly what people do at my job and it is encouraged. A walking break every hour or two is accepted, managers do it, we were even encouraged to install something on our computers that would remind us every X minutes. And I work for a giant corporate entity which you would think would never encourage this. That said, when you're working on a hard problem its very easy to lose track of time. I kick myself on the days where my only walking break is at lunch.