Add friction to unwanted behaviors
Inserting even a small obstacle between you and an unwanted behavior meaningfully reduces how often it happens.
Why it works
The same friction mechanism that helps desired behaviors also suppresses unwanted ones. Even a minor barrier — an additional click, moving an app off the home screen, keeping a food out of sight — introduces a pause where the automatic response can be interrupted. The pause is not willpower; it is a decision point that gives the prefrontal cortex time to re-engage before the habit fires.
How to do it
- Identify the path of least resistance to the unwanted behavior and insert a step: unplug the TV and store the remote in another room; move junk food to the back of a high shelf.
- Log out of time-wasting apps and delete them from the home screen — even a 10-second sign-in adds enough friction.
- Do not rely on a single friction point; layer two or three small obstacles.
Evidence
Friction addition has direct support in food choice research (Wansink and colleagues) and digital behavior research: increasing the number of steps to access a behavior reliably reduces frequency. Note that some of Wansink’s food-environment research has been retracted; the core effect is replicated but specific effect-size claims from that line of work should be treated cautiously. (observational)
Some friction research (especially Wansink lab) has faced reproducibility concerns. The effect is real and replicated by others, but exact magnitudes are uncertain.
Sources
- Cheung, Mittal & Bhattacharya (meta-analysis) on friction and food choice (see also Dayan & Bar-El 2011 for replications)
Common mistake
Adding friction that you quickly learn to navigate without thinking — friction works at first but habituates if it becomes a routine step rather than a genuine obstacle.
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More practices for Environment Design for Behavior Change
- Reduce friction for good behaviors to near zero
Make the healthy behavior the path of least resistance by removing every avoidable obstacle between you and starting.
- Make cues for healthy behaviors obvious and visible
Put the cue for the behavior you want in your direct field of view at the moment you need to act.
- Change the default option in your environment to the healthy choice
Restructure defaults so the healthy behavior happens unless you actively opt out.
- Use a life transition to break old environment-behavior links
Major context changes (a move, a new job) create a rare window where old habits are disrupted and new ones are easier to form.
- Engineer your social environment to support the behaviors you want
The people around you are the most powerful environmental determinant of behavior — choose and structure social exposure intentionally.
- Audit and redesign your digital environment
Your phone and computer are designed by engineers optimizing for your attention — audit them as you would a physical space.
Related concepts
- Atomic Habits, Made Practical
The four laws, the real mechanisms, and where the science is strong
- Tiny Habits, Made Practical
The Fogg Behavior Model, anchors, and the role of emotion in wiring habits
- The Habit Loop, Made Practical
Cue, routine, reward — and how to edit the loop that runs automatically
- Indistractable, Made Practical
Internal triggers, timeboxing, and pacts — with the evidence behind each