Lung cancer is the leading cause of cancer deaths in Delaware. And the number-one cause of lung cancer has been proven to be smoking. Smoking can also cause heart disease and emphysema, a disease that makes it hard to breathe. Smokeless tobacco, such as chew, is also a leading cause of mouth cancer. For more than a decade, the state of Delaware has provided help for people to quit smoking with great success. In fact today, only one in four Delawareans smoke. There are also special programs and a website, My7Minutes.com—that provides encourage to teens and preteens never to start smoking or using tobacco.