Tobacco use has been strongly linked to many diseases, including heart disease, bronchitis, emphysema, and roughly one-third of all human cancers. It has been estimated that smoking is responsible for : 90% of all deaths from lung cancer ; 80% of all deaths from cancer of the larynx ; 78% of all deaths from esophageal cancer ; 48% of all deaths from kidney cancer ; and 17% of all deaths from stomach cancer ( H...
