This is something that I struggle with myself, and I hate to see other people do it even more.  But ever notice, especially for the self-employed, that they are always working?  I do it, I can't seem to help it most of the time.  Even if I'm not in my office, I am thinking about what I have to do when I get back there!

Try taking a night off...  For me, that's an endless loop of "I ought to be working"! 

But you know what?  Everyone has to find time to get away from the work.  For example, my parents go out every week and buy more plants to put in the yard.  My question to them everytime is:  When are you going to stop planting and enjoy the flowers?  I guess I can't say much, I do the same thing.  But then, they complain that I work too much also!

Moral of the story... In our busy lives, and wanting to do something "productive" every minute of the day, each of us have to find that half hour to hour just to relax.  Sit down and enjoy a cup of coffee instead of the usual stolen sips between punctuation while typing!  Believe me, you will be more productive when you get back to work after that break!