cancer causes

Cancer is a malignant behavioral disease of cells which is the result of multiple influences. There is no single factor, be it genetic, viral, chemical, radiation or physical injury which will invariably, by itself, cause cancer. The malignant behavior arises through a multi step process resulting from multiple harmful influences that cannot be detected or quantitated until the final step to cancer is taken - just as we can’t tell what’s going on in the criminal mind until the 1^st crime is committed.