Disease are dangerous to humans system, disease bring displeasure, depression and anxiety to human. Talking of cancer which is characterized in different types is really dangerous the matter it type and I accept that cancer is among the world disease today. Your grandparents, your aunt and you childhood friend parents must have really went through because of cancer and finally they were dead, it hurt people to the core I must, checking on the people we love but we can't find them anymore really comes with pain and I wish Cancer can be eradicated but it can't. Stay safe.