Incentives like a sales bonus or a monthly massage can motivate you, but they don’t rewire your brain. Incentives are way too far in the future to give you that all-important shot of dopamine that encodes the new habit. Doing three squats in the morning and rewarding yourself with a movie that evening won’t work. The squats and the good feelings you get from the movie are too far apart for dopamine to build a bridge between the two.
