Health Recovery Metrics - Medical Sources
All health recovery metrics in Kaivo are based on peer-reviewed medical research from leading health organizations. Here are our primary sources.
Primary Medical Research Sources
American Lung Association
Clinical timeline and organ recovery research after quitting smoking/vaping
Key Metrics:
- Lung function percentage improvements
- Cilia restoration timeline
- 1-3 months: 30% lung capacity improvement
- 1 year: 50-60% recovery
- 5 years: 80-90% recovery
CDC (Centers for Disease Control and Prevention)
National data on lung function, circulation stats, and infection risk reduction
Key Metrics:
- Documented improvements in lung function
- Enhanced circulation metrics
- Reduced infection risk data
- National cessation statistics
WHO (World Health Organization)
Global cessation statistics and international guidelines on tobacco cessation
Key Metrics:
- Worldwide recovery data
- International cessation guidelines
- Global health improvement comparisons
- International recovery statistics
American Cancer Society
Risk timelines for cancer and disease prevention after quitting
Key Metrics:
- Cancer risk reduction percentages
- Disease prevention timelines
- Long-term health outcome data
- Risk reduction by cancer type
Risk Reduction Timeline
Heart Disease
20 minutes
Heart rate and blood pressure drop
12 hours
Carbon monoxide level normalizes
1 year
50% risk reduction
15 years
Risk similar to never-smokers
Stroke Risk
24 hours
Reduced blood clot risk
2-5 years
Significant risk reduction
5-15 years
Risk approaches non-smoker levels
Lung Cancer
1 year
Lung cilia begin recovery
5 years
Risk begins to decrease
10 years
50% risk reduction
15 years
Risk significantly reduced
Lung Capacity Recovery Timeline
Short-term Recovery
- •72 hours: Bronchial tubes relax, breathing becomes easier
- •2 weeks: Lung function begins to improve
- •1-3 months: 30% improvement in lung capacity
Long-term Recovery
- •9 months: Cilia regrow, reduced infection risk
- •1 year: 50-60% lung capacity recovery
- •5 years: 80-90% lung capacity recovery
Additional Medical Resources
NIH National Cancer Institute
Latest research on smoking cessation and lung cancer risk reduction
View SourceJohns Hopkins Medicine
2025 analysis of 250,000 people showing e-cigarette links to COPD and hypertension
View SourceAustralian Government Department of Health
Evidence-based quitting strategies and support resources
View SourceImportant Disclaimer
Recovery timelines may vary based on individual health conditions and vaping history. These metrics are primarily based on smoking cessation research and may differ for vaping. Individual results can vary significantly based on:
- Duration and intensity of vaping/smoking
- Overall health and fitness level
- Age and genetic factors
- Environmental conditions
- Presence of other health conditions
Always consult with a healthcare provider for personalized medical advice.
About Our Calculations
The Kaivo app uses these research-backed timelines to estimate your personal recovery progress based on your quit date. Our algorithms combine data from multiple medical sources to provide you with the most accurate recovery estimates possible.
We continuously update our metrics as new research becomes available to ensure you receive the most current and accurate health recovery information.