Some things are riskier than others. Long term inhaling of smoke, dust, sawdust, and other small particles are a risk for a variety of lung and other illnesses. Cigarette smoking, in particular has been associated with various cancers, heart disease, and emphysema. These cancers include the throat, larynx, mouth, and the esophagus. Because of the increase usage of smokeless tobacco, oral cancers may account a very large percentage of cancers that affect people of America in the future.
Lung cancer is the most common form of cancer among men and women.
There has been a rapid increase of women smoking during the last three decades. Approximately eighty percent of lung cancer are attributed to tobacco use. Twenty percent is due to environmental factors such as air pollution, airborne substances such as asbestos, iron, and radon, and breathing side stream smoke from tobacco products. There is a seventy percent increase rate of heart disease in smokers than non-smokers. The risk of heart disease is increased if a person is both a smoker and heavy drinker.