Most advice on this is either a brain-damage story or a list of thirty rules. What has actually been tested is smaller and more useful.
Change where the cue lives. Increasing the friction between a cue and a behaviour, by moving the cue further away, reducing availability, or breaking the sequence that leads to it, reduces how often the behaviour happens. The effect is moderate and the evidence is graded low-certainty, mostly from short studies of food, but the direction is consistent, and what is separately well established is that intentions on their own translate weakly into behaviour. If most of your episodes happen in bed, the phone charging in another room does more than any mental technique. Pick two changes that hit your top trigger, not fifteen.
Decide now, not then. Plans in the form "if [specific situation], then I will [specific physical action]" reliably improve goal attainment: across 94 tests, a medium-to-large effect. Under craving your reasoning narrows and whatever is easiest wins, so pre-load the response. Three plans, mapped to your three commonest patterns.
Learn what an urge does. It rises, peaks and passes on its own. Suppressing the thought rebounds; turning toward the sensation and describing it does not shrink the urge, but it weakens the link between urge and action, which is the thing you actually want.
Plan for the slip. What you conclude in the twelve hours after one decides the week. "I knew I couldn't do this" is the sentence that turns one evening into a return to the pattern. "That happened, here is what set it off" is the one that doesn't.
Therapy has evidence too: CBT and ACT show meta-analytic support for problematic use, with the caveat of small, biased samples. If control is impaired across more than porn, a person beats an app.
Where this comes from
Read the full lesson: Environment design beats willpower →
Sources and how strong they are (6)
- Mixed evidenceIncreasing the friction of a behaviour - moving the cue further away, reducing availability, breaking the sequence that leads to it - reduces how often it occurs. The direction is consistently found and the effects are moderate, but the evidence is graded low-certainty, comes mostly from short laboratory studies of food, and has never been compared head-to-head with intention-based approaches. What is separately well established is that intentions on their own translate weakly into behaviour.
- Hollands et al. 2019, Cochrane Database of Systematic Reviews CD012573.pub3, doi:10.1002/14651858.CD012573.pub3, PMID 31482606
- Webb & Sheeran 2006, Psychological Bulletin 132(2):249-268, doi:10.1037/0033-2909.132.2.249
- Wood & Neal 2007, Psychological Review 114(4):843-863, doi:10.1037/0033-295X.114.4.843
- Well establishedImplementation intentions - plans in the form "if situation X, then I will do Y" - reliably improve goal attainment. Across 94 independent tests the effect was d = .65, which the authors describe as medium-to-large.
- Gollwitzer & Sheeran 2006, Advances in Experimental Social Psychology 38:69-119, doi:10.1016/S0065-2601(06)38002-1
- Well establishedIn a randomised study of 123 undergraduate smokers undergoing a cue-exposure procedure, brief urge-surfing instructions did not reduce reported urges but did reduce smoking over the following seven days.
- Bowen & Marlatt 2009, Psychology of Addictive Behaviors 23(4):666-671, doi:10.1037/a0017127, PMID 20025372
- Well establishedSuppressing a thought tends to make it more frequent once you stop suppressing — the rebound effect, found consistently across 31 experiments. Whether the thought increases while you are still suppressing it shows up only under additional cognitive load. On sexual thoughts specifically the evidence is indirect: the one study in this area is a cross-sectional survey of religious adolescents that models suppression as a mediator, not as a cause.
- Wang D, Hagger MS & Chatzisarantis NLD 2020, "Ironic Effects of Thought Suppression: A Meta-Analysis", Perspectives on Psychological Science 15(3):778-793, doi:10.1177/1745691619898795
- Does not report a rebound effect — Efrati Y 2019, "God, I Can't Stop Thinking About Sex! The Rebound Effect in Unsuccessful Suppression of Sexual Thoughts Among Religious Adolescents", J Sex Res 56(2):146-155, doi:10.1080/00224499.2018.1461796, PMID 29702013
- Well establishedMarlatt's relapse-prevention model identifies the Abstinence Violation Effect: after a lapse, attributing it to a permanent personal flaw predicts a full return to the behaviour.
- Marlatt GA & Gordon JR (eds) 1985, Relapse Prevention: Maintenance Strategies in the Treatment of Addictive Behaviors, New York: Guilford Press, ISBN 0-89862-009-0
- Curry S, Marlatt GA & Gordon JR 1987, J Consult Clin Psychol 55(2):145-149, doi:10.1037/0022-006X.55.2.145
- Mixed evidenceMeta-analytic evidence supports CBT and ACT for problematic pornography use and related depressive symptoms, but the studies carry a high risk of bias and small samples.
- López-Pinar C, Esparza-Reig J & Bőthe B 2025, J Behav Addict 14(2):630-643, doi:10.1556/2006.2025.00018, PMID 40126561
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