Story map
Follow the question, method, turning points and impact behind this person's work.
The question or challenge
Why do people repeat actions even when they want to change them?
Their work and method
Duhigg reported on research into how habits form, then used stories and personal experiments to explain the cue-routine-reward loop in plain language.
Turning points
While examining his own cookie habit, he tested different rewards and discovered that a break and conversation were driving the routine.
Key moments
Experiments, pivots, and surprises. Look for what changed their thinking.
- 1Notice
What happened: He identified the repeated afternoon trip for a cookie.
Lesson: Start with what actually happens, not what you assume causes it.
- 2Experiment
What happened: He tried different routines and rewards.
Lesson: Small tests can reveal which reward a routine is serving.
- 3Redesign
What happened: He kept the social break while changing the routine.
Lesson: A replacement can work better when it still serves the real need.
Impact
Work can create value and still involve limits or trade-offs. Look at both sides of the impact.
Positive
- +The Power of Habit made habit research accessible to a wide audience.
Trade-offs
- ±Readers should distinguish an explanatory framework from clinical or medical advice.
- ±The loop is a useful way to inspect a behaviour, but it is not a diagnosis and it does not make every habit easy to change.
What to remember
If you had to explain this story to a friend, what would you want them to remember?
- Break a repeated behaviour into cue, routine and reward.
- Test assumptions about what reward you are seeking.
- Use a framework as a prompt for observation, not a label for a person.
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Sources & further reading
- Charles Duhigg, The Power of Habit - https://charlesduhigg.com/the-power-of-habit/
- Charles Duhigg, Reader's Guide to Changing Habits - https://charlesduhigg.com/wp-content/uploads/2025/01/Duhigg-Readers-Guide-to-Changing-Habits.pdf