In a 2009 study at the University of Missouri, the researches tested the interplay between death awareness and the value placed on life. Specifically, they applied the scarcity principle (that when something is perceived as more rare, it rises in value) to hypothesize that death awareness should heighten the value of life by heightening awareness of life's scarcity. Three studies were undertaken. The results of the studies suggest that the value given to life is intricately linked to thoughts of death. When people value life more, death thoughts are higher. And, when people are thinking about death, they believe life is more meaningful.
I think death awareness does not come automatically to all cancer patients. This is because after the initial cancer diagnosis, some patients sink into depression and don't recover. I believe those cancer patients who has embraced and accepted the cancer as part of their life then their life will be much happier and also more positive most of the time. I also believe there are many cancer patients like me and many more happier than me. Accepted and make the best out of it. With this death awareness, we then try to make the best out of out life. Do something meaningful. Isn't that a very good quality of life?