Add Yahoo as a preferred source to see more of our stories on Google. It doesn't matter how long you've been smoking, quitting is the single biggest thing you can do to improve your health, say ...

Smoking can cause lungs to look blackened, inflated, and inflamed, but some of the damage is reversible. Depending on the extent of the damage, it could take years for your lungs to regain a healthy, ...

Hypertrophic cardiomyopathy (HCM) thickens and stiffens the left ventricle of your heart, which can limit blood pumping. HCM can also worsen atrial fibrillation risk and related blood clots. Smoking ...