most of the time we survive. If you define cancer as genetic mutation that makes a cell not dying when it should and then dividing too much into undying copies of itself. They are mostly eradicated by body itself or they never go through mitosis too aggressively. Cancer research should focus on slowing down fast mitosis instead of trying to kill countless types of different mutated cells in expense of thrashing the body IMHO.These days everything is an early warning sign for dementia! Being alive seems to be an early warning sign for dementia! I'm beginning to suspect they are making it up as they go along...