The iQuit guide library
Quit smoking guides, science and motivation
Practical, research-backed articles for every stage of quitting, from choosing a method and planning your quit day to handling cravings and staying smoke-free.
-
The Classic 4 Ds vs App SOS Tools: In-the-Moment Craving Methods Compared
The 4 Ds — Delay, Deep breathe, Drink water, Distract — have anchored quit programs since the 1980s, and they still work.…
-
Your Quit Day Checklist: How to Prepare the 24 Hours Before You Stop
Quit attempts launched on impulse fail more; quit attempts launched prepared start with momentum. The 24-hour countdown checklist: purge the supply, wash…
-
How Long Does Nicotine Stay in Your System? Blood, Urine, Saliva and Hair
Nicotine itself clears blood within 1-3 days, but its metabolite cotinine — what tests actually measure — lasts up to 10 days…
-
iQuit’s Journal: The Daily Habit That Recharges Your Streak Shields
One journal entry a day in iQuit does triple duty: it logs mood and craving patterns your coach and forecasts learn from,…
-
If-Then Plans: The Psychology Trick That Doubles Your Follow-Through When Quitting
“I’ll try not to smoke” fails because it leaves every hard moment to be decided live. Implementation intentions — “IF X happens,…
-
How Addictive Is Nicotine? Where It Ranks Against Alcohol, Caffeine and Hard Drugs
In expert rankings of dependence potential, nicotine sits alongside heroin and cocaine — above alcohol and far above caffeine — with roughly…
-
Why Am I So Hungry After Quitting Smoking? (And How Long It Lasts)
Nicotine was an appetite suppressant and a metabolism booster — quit, and hunger arrives from four directions at once: suppression lifts, taste…
-
Blood Pressure After Quitting Smoking: What Changes and When
Each cigarette spikes blood pressure for 15-30 minutes; a pack a day keeps you in a near-constant artificial hypertension. After quitting, the…
-
Streaks vs Challenges: Which Gamification Actually Keeps Quitters Engaged?
Streaks build identity but punish imperfection; time-boxed challenges give structure and fresh starts but can end with a motivation cliff. What behavior…
-
How to Survive Your First Smoke-Free Night Out (Without Ruining the Fun)
Alcohol lowers inhibition, friends step out to smoke, and the old permission structure is everywhere — night one out is the quit’s…
-
10 Quit-Smoking Myths That Keep People Smoking (Debunked With Evidence)
“The damage is done.” “I’ll gain 20 pounds.” “Cold turkey is the only real way.” “Cutting down is just as good.” Ten…
-
iQuit Challenges: From the 7-Day Shield to the 21-Day Habit Breaker
iQuit’s challenges turn the quit into a game with real stakes: the 7-Day Shield, Mindful Mornings, Walk It Off, the Savings Challenge,…
Ready to start your smoke-free plan?
iQuit gives you a quit plan, craving SOS tools and a health timeline that shows your body recovering.