You should asked the doctor to tell us the causes of CANCER. The doctor should also tell us what to do to avoid CANCER. For me, doctors don't know what is CANCER if the body has the ability to HEAL itself. If one doesn't drink, smoke and do other vices and your doctor tells you that you have CANCER, please tell the doctor he or she is lying. We should have in mind that, doctors want someone they can EXPERIMENT with.