FAQ
What happens to your body when you quit smoking
Within 20 minutes heart rate drops; within weeks lung function improves significantly.
Quick Answer
Within 20 minutes heart rate drops; within weeks lung function improves significantly.
Detailed Explanation
Benefits begin immediately and continue for years. Carbon monoxide levels normalize in 12 hours, circulation improves in 2 weeks.
Key Facts
- Heart attack risk drops by 50% within one year
- Lung cancer risk decreases by 50% within 10 years
What the Research Says
CDC documents timeline of health improvements after quitting
Frequently Asked Questions
How fast does health improve
Benefits begin within 20 minutes and accumulate over years
Will I ever be as healthy as a non-smoker
Many risks approach non-smoker levels after 10-15 years
Sources & References
The information in this article is based on publicly available research and guidance from the following authoritative health organizations:
- CDC - Smoking & Tobacco Use
- WHO - Tobacco
- NIH - National Cancer Institute
- American Lung Association
- American Heart Association
- Truth Initiative
- Smokefree.gov
Sources accessed February 2026
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