LoutraNicotine withdrawal, week by week
By Loutra · Updated · Sources (5)
The short answer
Nicotine withdrawal can start within a few hours of your last cigarette, is strongest in the first week and especially the first three days, and lasts 3 to 4 weeks on average according to the NHS. Sleep usually settles in 2 to 3 weeks, headaches in 3 to 4, and mood at around 4.
What the NHS actually says
"On average, symptoms last 3 to 4 weeks."
NHS — withdrawal symptoms. An average is not a deadline. The HSE advises seeking help if symptoms do not improve or worry you.
It starts faster than most people expect
Withdrawal does not wait for the next morning. The NHS is clear that after your last cigarette, withdrawal can start within a few hours, and the first cravings can turn up about half an hour in. Which means the hardest part of quitting begins on the same day you decide to, usually before you have told anyone.
What you are feeling is a list, not a personality change. The NHS names it: strong urges to smoke, trouble concentrating, restlessness, trouble sleeping, being easily upset or irritable or frustrated or angry, and feeling anxious, tense or low in mood. These are usual time ranges, not an individual timetable.
An individual craving runs on a different timescale: see how long a nicotine craving lasts. For difficult nights, our sleep after quitting guide explores other possible factors.
The clock, week by week
- First hoursWithdrawal can begin. First cravings around 30 minutes after the last cigarette.
- Days 1–3The worst of it. Symptoms are strongest in the first week and especially the first three days; cravings are at their most frequent 2 to 3 days after stopping.
- Weeks 2–3Sleep problems usually stop. Low energy improves. Constipation, if you got it, takes about the same time to settle.
- Weeks 3–4Headaches usually stop.
- Around week 4Low mood, irritability and anxiety usually get better. Most symptoms stop after a month.
- Weeks 4–6Cravings usually improve.
- BeyondSome people feel symptoms for longer, sometimes for a few months. That is described by the NHS as within the normal range, not as a failure.
Why day 28 keeps coming up
The NHS’s 28-day figure is a motivational milestone, not an individual guarantee or evidence that every symptom will have disappeared by then.
What the NHS actually recommends
Not willpower. The guidance is to combine treatments — nicotine replacement such as patches or gum, or stop-smoking medicines — and to ask a GP or a local stop smoking service which is right for you rather than going it alone. Alongside that: distraction, exercise, deep breathing, avoiding your triggers where you can, and keeping your reasons for quitting written down somewhere you will see them.
The reason we say this on a page that ends with a link to our own app: an app is good at the daily part — the noticing, the counting, the getting through an evening. It is not nicotine replacement and it is not a clinician, and any app that lets you believe otherwise is selling you something.
If it is alcohol and not nicotine
Everything above is about nicotine. Alcohol is a different situation and a more dangerous one: stopping alcohol or benzodiazepines abruptly can be dangerous and should be done with medical advice. If that is what you are quitting, talk to a doctor before you change anything.
Sources for this warning: NHS — Alcohol-use disorder ; NHS — Lorazepam.
Questions people ask
How long does nicotine withdrawal last?
On average, symptoms last 3 to 4 weeks according to the NHS. Some people feel them for longer, sometimes even for a few months.
When is nicotine withdrawal at its worst?
Symptoms are usually strongest during the first week, especially in the first 3 days. Withdrawal itself can start within a few hours of your last cigarette.
What are the symptoms of nicotine withdrawal?
The NHS lists strong urges or cravings to smoke, trouble concentrating, feeling restless, trouble sleeping, being easily upset or irritable or frustrated or angry, and feeling anxious, tense or low in mood.
How long does insomnia last after quitting smoking?
Sleep problems usually stop after 2 to 3 weeks according to the HSE, and low energy improves over the same period.
Why does everyone talk about 28 days?
Because once you reach 28 days smoke free, you are five times more likely to stay quit for good, according to the NHS. It also lines up with when sleep, headaches and mood have usually settled.
Loutra is free on the App Store
An otter that’s counting on you, a daily check-in, and a breathing round for the minutes that are hard.
