For all people, death is an inescapable end. Perhaps from the moment we come into the world, we are destined to accept the end of death. Even though we have different life processes, our life endpoints are all the same.
In this world, there are always many people leaving us, and we have experienced the death of people around us in one way or another. But do you know? In fact, at the time of the final farewell, the person who died can still hear the surrounding sound, what is it?
The process of human death
Life is a "short trip", we get on the train for a few decades, we are bound to move towards the end of death. For death, many people are both afraid and curious, so what is the process of death is really like?
Common sense suggests that the process of human death can be divided into three phases: the near-death phase, the clinical death phase, and the biological death phase. Different people have different definitions of death, but death is a long process for us, and all our body functions will be gradually "laid off" in this process, ending their lives.
The first stage of death: the near-death stage. As the name implies, during the near-death stage, we will be constantly wandering within the boundary between life and death, making our final mass on earth. During this stage, our consciousness will gradually become blurred and all the functions in our body will start to become sluggish.
Our brain will also not be able to respond in a timely manner to what is happening in the outside world. My heart will start to get weaker and weaker, slowly stop beating, and in the process, our breathing will also start to slow down. In the near-death stage, we can clearly feel the gradual disconnection from the world.
Second stage of death: clinical death period. After passing the first stage, we come to the clinical death stage. During this stage, we will not have any valid vital characteristics and our doctor will pronounce us dead.
By definition, our lifetime is over. We will not have any breathing function and our brain will be completely unconscious and incapable of thinking.
The third stage of death: the biological death period. This is the last stage of death, in which all the organs of our body will be gradually "laid off". It is the end of our life.
During this process, all metabolism in the body ends and our organs go on a "no return" journey to death. With the passage of time, our life will be completely over, our physical body will most likely be sent to the funeral home cremation, in the world, there will be no trace of our physical body.
Late loss of function
For the human body functions, there is a "first come, first served" process, and among the legends, human hearing is one of the latest to be laid off. So there are many people have said that even if a person has died, but also can hear the outside world.
Since the dead do not speak, so people have always questioned whether people can hear outside voices after death. In order to verify the truth of this rumor or not, a medical team from Canada has launched a "hearing survey" on 60 dying patients.
The research team used brain waves to check the hearing condition of the human body after death, if the patient's brain waves can still fluctuate normally after death, then it means that the person can still condition the external sound after death.
After the experiment was conducted, the research team began to implement their own "brainwave project". During the last days of the deceased, the team played a sound clip to check the status of their brain waves.
And after their death, the research team likewise played the sound, comparing what the two brainwaves presented. The research team was surprised to find that for a short period of time after death, their brain waves still showed normal fluctuations.
This means that for a short period of time after death, the dying person can indeed hear the outside world, and our sense of hearing is indeed the last function in our body to be "laid off".
Why does hearing finally disappear?
For every organ in the body, it will come to a dead end when the body dies, so why is hearing the "lucky" one, the last function of the body to disappear?
In this regard, scientists have also given an explanation: First, it turns out that after the death of the human body, there is actually a certain "time gap" between physical death and brain death. And this time difference will be able to give our hearing a certain amount of "retention" time. Our sense of hearing can use this time to finally work for the body.
Second, compared to other body functions in the human body, human hearing requires less energy to be consumed. It is because the auditory function has the characteristic of "low energy consumption", so after the death of the human body, our auditory can use the last bit of energy to perform its function, doing its last "work".
However, although our hearing can play their own energy after the death of the human body, but in fact the process does not last long, according to expert speculation, the process is only about 30 seconds or so. After 30 seconds, our sense of hearing will disappear, and we will be completely disconnected from the world.
It seems that even after the death of someone else, we need to be careful what we say and do, as the body's sense of hearing conveys the "last voice" of the world for us.
For many people, the life of a person is so short that we do not know when the train of life will stop for us. So as people who are still living in the world, we should also cherish our lives and live each day well in the world.