The risk of developing cancers of the mouth, throat, and esophagus decreases significantly 5 years after quitting. The risk of developing bladder cancer and cancer of the cervix also decreases after just a few years of being smoke-free. Besides lowering the risk of cancer, quitting smoking has many more health benefits. The smoker's heart rate and blood pressure, which are usually high while smoking, begin to return to normal. Within a few days of quitting, the smoker's sense of taste and smell return, and breathing becomes easier.
Quitters also reduce their risk of developing infections like pneumonia.
After 10-15 years, a previous smoker's risk of death approaches that of a person who never smoked. People who want to stop smoking should ask their doctor about the method that is best for them. Always consult your own doctor about any opinions or recommendations with respect to your symptoms or medical condition. Beth Israel Deaconess Medical Center .