I've noticed that my concentration tends to lapse after spending 12+ hours in front of a computer. Then you're normal. Your body is telling you to get up and

I've noticed that my concentration tends to lapse after spending 12+ hours in front of a computer. Then you're normal. Your body is telling you to get up and take a break. Listen to it. Not satisfied? Check out this thread from earlier today: http://news.ycombinator.com/item?id=869034 http://news.ycombinator.com/item?id=869034