Breast cancer is the highest incidence of a disease in Germany, and breast cancer patients, only 3% to 5% were related to genetic factors, leading to a high incidence of breast cancer is mainly due to lifestyle, such as obesity and regular alcohol women in the highest risk of breast cancer, in addition, early menarche, late pregnancy, childbirth, breast-feeding time is short and the long-menopausal women who are vulnerable to breast cancer. 80% of head and neck cancer patients with smoking and / or alcohol history.

As we all know, lung cancer related to smoking. In fact, the harmful effects of smoking Not only that, but also cause other cancers. And non-smokers compared to smokers risk of lung cancer larger 8 to 12 times the risk of laryngeal cancer occurred large eight times the risk of esophageal cancer occurring large 6-fold risk of bladder cancer occurred Big 4 times. And the greater the amount of smoking, smoking history longer, the incidence of these cancers higher. Quitting smoking is the most important measures for prevention of cancer, smoking cessation and not smoking more than other public health activities to protect and prolong life.