Sources

Last updated July 18, 2026

Gradual reduction vs. stopping abruptly

Lindson N. et al., "Smoking reduction interventions for smoking cessation." Cochrane Database of Systematic Reviews, 2019. Found that reducing gradually before quitting produces quit rates comparable to stopping abruptly.

Measuring nicotine dependence

Heatherton T.F., Kozlowski L.T., Frecker R.C., Fagerström K.O., "The Fagerström Test for Nicotine Dependence." British Journal of Addiction, 1991. Time to first use after waking is a core item of the standard dependence measure; the in-app self-assessment adapts this framework for pouches and is not a medical diagnosis.

Nicotine dependence and quitting

U.S. Department of Health and Human Services, "Smoking Cessation: A Report of the Surgeon General," 2020. Covers nicotine dependence as a treatable health condition, the role of structured support, and the reality that most people need multiple attempts.

Riding out cravings ("urge surfing")

Bowen S. & Marlatt G.A., mindfulness-based relapse prevention research (e.g. "Surfing the urge," Psychology of Addictive Behaviors, 2009). Cravings are time-limited waves that can be observed and outlasted rather than fed.

A note on pouch-specific research

Nicotine pouches are a newer product and pouch-specific studies are still emerging. Where the app describes how nicotine dependence and withdrawal work, it draws on the broader nicotine research above; where evidence is uncertain, the app says so rather than overstating it.