Life, old age, illness and death are common human feelings, and death is something that everyone has to experience and face, but when death really comes, we have too many things that we can't put down. For relatives, although they are powerless to return to heaven in the face of life and death, they always want to do their best to let their dead relatives experience their inner reluctance and mourning.
There is also a custom in Chinese folklore that before the funeral, the body should be stored for three days, during which relatives are not allowed to come close and cry in front of the coffin. It is believed that at this time, the soul of the deceased is still wandering in the home, hearing the cries of his relatives, unwilling to leave, and there is no way to reincarnate in reincarnation.
The dead obviously have no breathing heartbeat, so can they still hear the cries of their loved ones? These traditional folk customs, in the end, do not conform to science? In fact, for these ghost legends of yin cao difu, it is just an imagination of people in ancient times, in order to mourn the dead relatives, people have created the illusory world of Yin Cao difu, imagining that dead relatives can live in another world, these legends are naturally not in line with science. But after a person dies, he can really hear the cries and cries of his loved ones.
Science has shown that after a person's death, the sounds around them can still be sensitively captured and transmitted to the brain. At the end of life, although the deceased cannot speak and the body cannot move easily, at this time, they can still hear the voice of their loved ones, and even be infected by the power of affection and come back to life.
This is a true story, 67-year-old Yu Fanghua, thousands of miles from Guangzhou to Beijing, originally wanted to accompany his grandson to celebrate the New Year, but suddenly fell ill, was issued a death notice by the doctor. The son was less overwhelmed for a while after facing the loss of his mother's heartbeat and the doctor's "verdict". At this time, he suddenly took out his mobile phone, walked to his mother's side, played a video, the child's voice in the video is his son, the child said over and over again: "Grandma I love you", who knows, the old man who walked away at the ghost door was actually revived, such a medical miracle also confirmed the fact that after cardiac arrest, hearing still exists.
In daily life, we judge whether a person is dead or not, based on the heartbeat, and if a person loses his heartbeat and has no breath, then we conclude that the person is dead. This is not only a way for people to determine death, in the era when medical technology was not developed, doctors also used the heartbeat as the criterion for determining death. But with the continuous development of medical standards, scientists have tested brain waves to continue to move after cardiac arrest, and even within a few hours after the death of brain cells, the movement status of brain waves can still be measured. This state of motion is very similar to the radio waves of people during sleep, when scientists realize that traditional heart death is not real death, only brain death, when all brain cells die, can be regarded as real death.
The human heart is a never-ending pump that works all the time, transporting energy and oxygen to organs throughout the body throughout the body. When the heart stops beating, the blood can no longer be transported to the various organs in the body, and the organs will lose their ability to work with the cessation of the heart, and the functions will gradually decline. But at this time, human beings will not lose their activity because of cardiac arrest, the original blood and oxygen in the body can still maintain people's short-term survival state, at this time, human senses still have a response, so people can hear the sound after death.
Human vision is one of the most intuitive sensations, and when a person is dying, the eyes will gradually close, which is the first omen before death. The process of visual production requires a lot of energy, when people die, blood will flow into the brain in large quantities, providing sufficient oxygen for the brain, after receiving the signals sent by the body, all the energy pours into the brain, and at this time, the energy that can supply visual enjoyment becomes less and less, and humans have no way to continue to maintain normal visual function, and the line of sight will become more and more blurred until the vision disappears.
The next thing that disappears is the sense of touch, when the human body dies, the blood pressure on the surface of the body will drop rapidly, and the working principle of touch is transmitted by stimulating the change of membrane potential. Although the energy required for touch is not much compared to vision, when the stimulation receptor is affected, people's touch sense loses its function and gradually cannot feel the touch.
Smell and taste although the name is different, the essence is the same, their conduction principle is dependent on enzyme cascade reaction, the normal operation of this reaction is affected by temperature conditions, but when the human body dies, the body surface temperature will quickly decrease, without temperature conditions, the human body's sense of taste and smell will lose the ability to work.
The hair cells in the cochlear fluid will conduct sound and convert it into electrical signals to the brain, because the cochlea structure is relatively closed, and there are many high-level nerve cells, so the energy consumed is extremely low, the auditory induction reflex arc is short, it is very close to the brain, and the conduction of sound can quickly enter the brain. Therefore, when humans die, in the face of the gradual disappearance of other senses, the sense of hearing can be maintained for a long time.
We often say that there is knowledge under the fountain of the spirit of heaven, and this is not unreasonable. But these conditions can only exist for a period of time after the death of the heart, and if the deceased is brain dead, then there is really no sound to be heard.
Therefore, while telling the parting words, we must pay attention to words and deeds, do not think that the deceased cannot hear, and unscrupulously judge the deceased's past and let him end his life in pain. And those who want to seize the opportunity of the slowest loss of hearing and say goodbye to their loved ones can also tell their unwilling feelings and good wishes one by one. Perhaps at the moment of cardiac arrest, the words of a loved one can become a miracle of victory over death.