I've found as well that once I get really going on a tough problem, it may consume my life for the next several days in a row, it'll be all I do or think about.

I've found as well that once I get really going on a tough problem, it may consume my life for the next several days in a row, it'll be all I do or think about. I wish I knew how people turn it off after a few hours a day and think about anything else.