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This thread got me thinking about brain chemistry too! It reminded me of how clear, short-term, achievable goals can be incredibly motivating because we get a dopamine hit when reach those goals. The downside though is that dopamine hit feels so good for some of us, that we can easily become obsessed and start pushing the goal higher and higher to keep feeling that sense of accomplishment. Eventually people burn out because they've pushed the level of what feels rewarding to a level too demanding to maintain. Originally Posted by mars735
One explanation for yoyo dieting that's helped me, so far anyway, has to do with brain chemistry.
What may help you, carbstart, is picking goals for MFP and your fitbit that you can easily sustain and forbid yourself from bumping them up higher? That way you'd still get to track the days that you've been on plan, so you get a nice visual of your success, but you don't push the requirements for success too high?