| [ Summary ] |
As shown in annual national statistics and immigrant studies, cancer incidence rates differ in relation to time and place, which implies that cancer may be preventable. To accelerate the reduction of cancers, such as that of the stomach, and diminish the increasing numbers of cancer cases, such as that of the colon, is an obvious strategy. First, it is necessary to evaluate the risks and consider preventive factors based on scientific evidence. Then we must find practical means of prevention to disseminate information on reducing cancer risks in the general population. On the other hand, cancer prevention through chemical or nutritional supplements, or specific methods based on genetic or other predispositions should be developed and implimented for individuals. Preventive medicine should be evidence-based, in the interest of health promotion and disease prevention. It should be applied not only to single illness but to comprehensive health care. It also should be developed in conjunction with laboratory and curative medicine for early detection and treatment. |