People have gotten used to the idea of becoming a bit dramatic and emotional when talking to someone with a life threatening disease. When this scene happens, people tend to become mushy and they cry because of their emotions.
But sometimes, this kind of attitude towards a family member or a friend who is battling for his or her life will not do any good at all. Sometimes, one must use strong words in order to encourage someone ill to stay strong and fight to stay alive. It can give them enough courage and inspiration to try harder in successfully dealing with their disease.