I find when I exercise more, I tend to eat better:

- I enjoy running, and eating poorly will affect my ability to run in the short-term, as lots of junk food makes my running experience that day poorer; and

- Recently I've started going to the gym. Best to be fairly lean to see those new muscles, though I don't take it to an extreme. I prefer a balance.

Shifting the consequences from long to short- and medium-term helps!