An anonymous reader writes "How many hours a week should a full-time programmer program? Trying to program anywhere near 40 wears me out. On a good week, I can do 20. Often, it is around 10 or 15. I'm talking about your programming session at the console, typing — including, of course, stopping and thinking for a minute, but not meetings, reading programming books, notes, specifications, etc., which by comparison feel like lunch breaks. I rarely get called to meetings (which is good) but that means to keep my brain from overheating I spend several hours a week surfing the web (usually reading tech news but also a few stops on Facebook, email, etc.). I should add that I am interrupted a few times per day. Me and another guy maintain an intranet site of a couple dozen web apps for an IT department, so we work on a few different things: phone calls, bug fixes, feature adds, as well as writing new web apps from the ground up, all in a day's work. And I know that wears a person out more than if they had just one project to work on. I wonder if programming is like mental sprinting, not walking, so you can only do it in bursts. Am I normal or stealing?"