Q1697Intending to exercise more changes little. Writing down when, where and how — 'after I put the kettle on, I do ten minutes' — reliably doubles or better the odds you actually do it.
Peter Gollwitzer's idea is that a goal is a wish until it is attached to a cue. Specifying the moment and the place hands the decision to the environment instead of your willpower, so you are not renegotiating it each time. A meta-analysis across hundreds of studies found a moderate-to-large effect, holding for exercise, diet, revision and medical screening. The format matters: an if-then sentence tied to something already in your day works far better than a resolution about intent.








