A minute a week.

I've been an on again, off again runner for most of my adult life. When I'm off, it's because I've overdone it and injured myself. When I'm on, instead of enjoying the run I'm on, I'm always thinking about how far I'm GOING to be able to run. I would read articles written by seasoned marathoners, and followed the advice of these experts who tell you that you can build your mileage quickly if you take a one minute walking break in the middle of a run, or that you can increase your mileage ten...