What made me exercise in the first place: I saw bathroom scales at department store and randomly decided to buy them. Back at home, first time stepping on them

What made me exercise in the first place: I saw bathroom scales at department store and randomly decided to buy them. Back at home, first time stepping on them I realized I'm not just a little overweight, I'm way overweight. I started weighing in every day and writing down the number. Always knowing my exact weight was a motivator to change diet and start exercising. Around that time I also read Murakami's "What I Talk About When I Talk About Running". It was inspiring, and I started doing 5K runs each morning. Next few years a big motivator to work out was seeing my results improve in amateur bike races. In the biggest local cross country amateur racing series, I went from finishing in top 500, to top 100, then 30, then top 10.