Quit smoking and improve lung health quickly.

Metabolism takes a while, maybe as long as 3 5 years, but of course it is very, very good to quit smoking. I just smoke, but I borrowed it several times without success. Quitting smoking is better than not quitting smoking, right? No matter how thorough your research is and how well your lungs recover, quitting smoking is just a waste.

However, there must be a considerable degree of recovery. One month after quitting smoking, the cilia in the lungs can regenerate, thus starting to remove tar and dead cells from the trachea. This is why many people start to spit black phlegm after quitting smoking.

The human body has its own recovery function. The best way to protect the lungs is not to smoke, stay away from polluted environment and do more exercise. Maintain a good lifestyle.

Of course, it is unlikely that you will completely return to the state where you have never smoked at all.