What changes in your body after you quit smoking?
Short answer
The earliest documented changes are easier breathing, taste and smell recovering, and coughing settling after the first few weeks. Coughing can increase before it improves, as the lungs begin clearing. Long-term benefits accumulate with time spent not smoking, starting from the first day.
Key points
- Taste and smell recovering is an early documented change.
- Coughing can increase in the first weeks before it improves.
- Benefits accumulate with time spent not smoking.
- The people you live with stop being exposed from day one.
The first weeks
Breathing gets easier. Taste and smell recover, so food tastes stronger. Clothes, hair and the house stop smelling of smoke.
Coughing can increase before it settles. This is described in cessation material, as the lungs begin clearing. Plenty of people misread it and go back to smoking.
Over time
Benefits accumulate with the amount of time you have not smoked. This is why guidance measures outcomes at six and twelve months of continuous abstinence.
We do not publish specific risk-reduction figures here. Those depend on age, years smoked and health status, and a doctor is the person who can answer for your situation.
The change that takes effect immediately
One change does not require waiting: the people you live with stop being exposed to secondhand smoke from the first day.
WHO states there is no safe level of exposure to secondhand smoke. The day you stop is the day their exposure goes to zero.
The part that is not about health
Money. Smell. Not leaving in the middle of a meal. Not calculating whether you have enough for a trip.
These are what people actually report, and they arrive sooner than any medical figure.
Getting started
The quitline is 1800 6606, free, 08:00 to 22:00 daily.
Common questions
- Why is there more coughing after quitting?
- Increased coughing in the first weeks is described in cessation material, as the lungs begin clearing. It is not a sign that quitting is making you worse. If a cough persists or produces blood, see a doctor.
- Is it too late to quit?
- Benefits accumulate with time spent not smoking, starting from the day you stop, at any age. Ask a doctor about your specific situation.
Sources for this article
- Guidance on smoking cessation counselling and treatmentMinistry of Health, Vietnam
- Tobacco fact sheetWHO
- Stop smokingNHS
- Respiratory Centre, quitline 1800 6606Bach Mai Hospital