Nicotine
Smoking cessation health timeline: useful facts without hype
Timelines can motivate, but they are approximations rather than promises that everyone feels different on a particular day.
Early changes
HSE describes health improvements beginning within minutes and hours after the last cigarette, including changes in heart rate, blood pressure and carbon monoxide levels.
Weeks and months
Withdrawal often improves over weeks while lung and cardiovascular benefits continue over longer periods.
Years still matter
Long-term risks continue to fall over years. Quitting is not only about how you feel this week.
Use the tool: choose a realistic next interval, return and answer honestly. A NO does not erase previous choices. The timer is not a substitute for medical treatment.
Sources and further reading