Best ways to quit smoking. Smoking negatively affects nearly every organ in the body, including the lungs, bladder, mouth, throat, kidneys, pancreas and heart. Both firsthand and secondhand cigarette smoke can cause cancer, emphysema and pneumonia. It even contributes to heart disease, according to an article on Americanheart.org. You already know you should quit, but nicotine is addictive, and the habit of puffing on a cigarette is a tough one to break. Once you decide to break the smoking habit, you'll need to come up with a plan and stick with it.
