Alan D. Shewmon, a professor of pediatric neurology at the University of California, Los Angeles, says, "Most people believe that 'brain death' is a fixed problem till ten years. I think that it is no longer. We reconsider the underlying various fundamental assumptions and begin to dismiss (Shewmon 1998). The decision of death becomes obviously more complicated, and the last question of death requires an answer. According to a recent definition, if the brain is destroyed completely irreversibly, it will no longer connect with the world.
One of the challenges in defining death is to distinguish it from life. At some point it seems that death is pointing to the moment of life. It is difficult to determine when death will occur because stoppages of life functions are usually not simultaneous throughout the organ system. Therefore, this decision requires an exact conceptual boundary between life and death. This is difficult, as there is little consensus on how to define life. This general question applies to the specific task of defining death in medical practice.
Another group of medical discussions on abortion is centered around the definition of life and death. If a set of criteria are used to define death, can they also be used to define life? Death is defined by stopping the heartbeat. It is a sign of obvious death that the mind is stopped. If stopping the heart beat can define death, can the start of heart beat can define life? The heart is formed on the 18th day of the uterus. If you use heartbeat to define life, almost all abortion will be prohibited.
Historically, the exact moment of trying to define human death is subjective or inaccurate. Although death was once defined as cardiac arrest (cardiac arrest) and respiratory arrest, development of cardiopulmonary resuscitation and rapid defibrillation is inappropriate as respiration and heart beats may be resumed from time to time I made it. Events that have a causal relationship with death in the past are no longer murder under any circumstances and can sustain life by combining life support equipment, organ transplantation, and artificial heart pacemakers unless there is a normal heart or lung.