Even though intellectually we all realize that death is inevitable, instinctively we try our hardest to defer it as long as we could. Throughout the ages, scientists and physicians have made experiments and come up with better and more efficient therapies to strengthen our bodies and prolong our life’s expectation to the extent that man’s therapeutic tenacity renders our lives impossible either to recover or to die. In other words, the patients may continue to be alive artificially for quite some time without any quality of life.