Cancer has been portrayed as one of the most deadly diseases that seems not to have any cure at the moment. Cancer can take hold in almost any part of the human body but it's most common to breast in women. I have seen one who suffered cancer attack on her leg and it eventually killed her even after amputating the leg. This makes me wonder why cancer is this deadly and still appear to defy any medical treatment. Chemo seems to be the only treatment for it at the moment but still it's not effective.