The Personal Analytics of My Life by Stephen Wolfram
Heart surgery in our family has triggered something of a crisis of fitness with everyone vowing to loose weight. Ironically its the runner in the family that has suggested the most sensible solution: buy a pedometer and increase the number of steps per day you walk to 10,000. (Although some say to just increase.) The idea supposedly started in Japan. The idea is to add a bit of activity here and there (the first site recommends going to a restroom on a different floor) rather than trying to lump the 30 minutes per day all ot once. So far with a desk-potato lifestyle 3,000 is easy but adding the extra few miles every day will require some extra work. Less social than a Volksmarch but compatable with a mall walk. And definitely less hazardous than freestyle walking.