Lung diseases caused by tobacco include COPD, which includes emphysema and chronic bronchitis. (Emphysema- Group of lung diseases that block airflow.) (Chronic Bronchitis- Inflammation of the lining of the bronchial tubes.) If you have asthma, tobacco smoke can trigger an attack or make an attack worse. Tobacco use causes many types of cancer- Lung, larynx, mouth, esophagus, throat, bladder, kidney, liver, stomach, pancreas, colon, rectum, cervix. There is no safe level of tobacco use, people who use any type of tobacco product are strongly urged to quit. About half of all Americans who keep smoking will die because of the smoking habit. Each year more than 480,00 people in the US die from illnesses related to tobacco use. Smoking accounts for about 30% of all cancer deaths in the US, including about all 80% of all lung cancer deaths. Whenever smoke touches a living cell it damages it, even smokers who don’t inhale are breathing in large amounts of smoke that comes from their mouths and the lit end of the cigarette, they are at risk for lung cancer and other diseases caused by second hand smoking.