I'm a stats geek. I spent many hours (more than anyone really should) reviewing and projecting batting averages and ERAs on the back of baseball cards as a kid, and really haven't stopped since. So, tracking metrics pertaining to healthy living kind of enables my inner geek.
The question that I struggled with was deciding what tracked metrics are more likely to reward long-term success. I settled on two metrics. First, those "live incident" monitors in manufacturing facilities simply amuse me (you know "it's been XX number of days since an incident in the warehouse"). So that one was co-opted into my war on lbs. I now use a "live incident" monitor to track the number of consecutive days that I've been "on" in my diet. I recently had 7 days straight "without incident" and am currently on a 2 (and a half) day straight streak. Being a huge baseball fan, I had to include batting average. I'm hoping my end result more mirrors the stats from Tuesday evening over-40 softball games than actual baseball averages (regress to a much lower mean). So far, so good. My batting average is a healthy 0.789, which is significantly higher than the Mendoza line (I swung at a few outside the strike zone on weekends). There you have it. This is how I have reduced my life to numbers. Enjoy.