How do I regain my stamina after quitting smoking?

How to Get Back Healthy Lungs After Smoking

1. Quit Smoking. The first step to repairing the quality of your lungs is to quit smoking.
2. Avoid Smokers.
3. Keep Your Space Clean.
4. Healthy Dieting.
5. Physical Exercise.
6. Try Breathing Exercises.
7. Try Meditating.