An overview of current and anticipated methods for cancer prevention.

Cancer prevention techniques include legislative regulation, chemoprevention, adherence to a "healthful" lifestyle, and specialized medical intervention. Attempts at cancer prevention have possibly avoided a dramatic increase in cancer incidence and mortality due to increasing dependence on the products of the chemical industry in many areas of our present civilization, but this is difficult to establish. There is little direct evidence that cancer prevention has led to any major reduction in cancer incidence or mortality.