Causes of cancer can be debated indefinetly. Studies show that carginogens, age, genetic makeup, immune system, diet, viruses, enviroment and let's not forget the biggest culprit,: pharmaceutical drugs, play a major role.
Preventive measures are; eating a healthy diet, exercise and making decision that will improve quality of life. Thus reducing chronic diseases, banishing environmental hazards in the home and eleminating unneccesary trips to the doctors.