Can we talk about the definition of human death and what death is from different angles?

The essence of life is the constant movement of this pair of contradictions in the process of assimilation and alienation in the body; And death is the end of this contradiction. The normal assimilation and alienation of tissues and organs in human body requires the respiratory and circulatory system to provide sufficient oxygen and raw materials, especially the central nervous system has poor tolerance to ischemia and hypoxia, so once breathing and heartbeat stop, it can immediately cause death. The so-called resuscitation is to replace the functions of respiratory and circulatory systems with artificial methods, and then take further measures to restore effective spontaneous breathing and heartbeat, thus ensuring the metabolic activities of the central nervous system and maintaining normal physiological functions. At the same time, it is necessary to actively correct the disorder of the internal environment of body fluids so that tissues and cells have a stable metabolic environment. Through resuscitation and rescue, we can rebuild the dynamic balance of the contradiction between assimilation and alienation in the body, restore the life activities of the body and gradually restore health.

As a result of disease, death is an inevitable law of life, but only a few people "die of old age" because of the natural termination of life (according to comparative biology research, the natural life span of human beings is about 140- 160 years old), and the vast majority of human beings die of disease. The causes of death due to illness can be roughly divided into three categories: ① Serious and irreversible damage to important organs (such as brain, heart, liver, kidneys, lungs and adrenal glands). ② Due to long-term diseases, such as body failure, cachexia, etc., the metabolic material base is extremely insufficient, and the normal functions of various systems cannot be maintained. (3) There is no obvious organic damage to vital organs, such as blood loss, suffocation, shock, freezing to death, etc.

In the past, people used to regard the permanent cessation of breathing and heart function as a sign of death. However, due to the progress of medical technology and the popularization of cardiopulmonary resuscitation, some new problems have emerged, which have impacted people's understanding of death. After the whole brain function stops and spontaneous breathing stops, the whole body blood circulation and the functional activities of organs except the brain can still be maintained for a certain period of time through artificial respiration and other measures. This is the abnormal phenomenon of "living body, dead brain" As we all know, the brain is the commander-in-chief of the body and an indispensable organ for human survival. Once the function of the brain stops permanently, the individual's life is over. This raises the question of updating the concept of "death". The concept of "brain death" is gradually accepted by people.

brain death

The irreversible permanent cessation of global brain function is called brain death. Including:

(1) Stop of brain function: In addition to movement and feeling, mental activity functions such as thinking and feeling, that is, consciousness, are also permanently lost. Brain waves disappear. If the brain stem function still exists and there is spontaneous breathing, it can not be called brain death, but can only be said to be in a "vegetative state."

(2) Brain stem dysfunction: the brain stem has reticular structure, brain nucleus, medullary vascular movement center, respiratory center and other important structures. Therefore, the loss of brain stem function means that the function of the above structure stops. The loss of reticular function leads to coma, and the loss of cranial nerve function leads to the disappearance of light reflex, corneal reflex, eyeball reflex, vestibular reflex, pharyngeal reflex and cough reflex. When the function of medulla oblongata stops, spontaneous breathing stops and blood pressure drops sharply until brain dies.

The type of death and the origin of nicknames

Due to the taboo of the word "death", Chinese has a very rich vocabulary to describe human death. According to research, there are more than 200 different versions.

* The death of the son of heaven: collapse, also known as "driving death" or "landslide"; The death of a vassal or queen: death (or death, death); The doctor died: a chess piece; Death; Not Lu; Shu Ren's death is death. (According to the Book of Rites? Also, in the Tang system, anyone with more than three products is called "Qi", those with more than five products are called "pawn", and those with six products are called "pawn".

* Folk saying: dead, dead, dead, gone, went home, went back, went away, went to sleep, left first, got old, became an old man, died, and went to the west forever. Suzhou sold duck eggs.

* Elegant names: passing away, passing away, dying a hundred years later (male), dying (female), becoming a thing of the past, alas, dying, dying, sleeping peacefully, resting in peace, dying (in Buddhist, referring to the life of another world), and driving a crane westward.

* Death of minors: death, premature death, short rest, premature death, mourning, mourning, premature death (premature death), death, abandonment, mourning, mourning and premature death.

* The beloved person died (commendatory term): death, death, long death, sudden death.

* People who hate death (derogatory term): hang up, get lunch, die (dialect), die, go home, die, die, die, die, die, die.

* Death of monks and nuns: death, nirvana and meditation.

* Taoist death: emergence, immortality and liberation

* Catholicism or Christianity: release your labor to the Lord, return your soul to the kingdom of heaven, ascend to the kingdom of heaven, rest in peace with the Lord, and be called by the Lord.

:: Muslims in China call for death: return to reality.

* Beauty dies: fragrance dies, beauty envies, and beauty is unlucky.

* Suicide: abandoning the world, committing suicide, committing suicide, being tired of the world, touching the locust tree (in the Spring and Autumn Period, I couldn't bear to be ordered by Jin Linggong to kill Zhao Dun and hit the locust tree to commit suicide), committing suicide by the people, hanging myself, committing suicide, etc.

* Natural death: the end of life, immortality, centennial, old age, death, long death, long death, back to the room, rejuvenation, go, go, die, die, die.

Abnormal Death: Death, Death, Pain, Death, Sudden Death, Martyrdom, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death, Sudden Death.

:: Death in abiotic or non-growth places: death of tourists.

Glorious death: sacrifice, dying, dying, martyrdom, martyrdom, sacrifice, glory, death, etc.

* Image statement: Meet Marx, meet ancestors and emigrate.

* More tactfully, it is said: the wind is gone, the genius is jealous, because Vivo is sinking, driving back to Yaochi, the sound is full, the teacher will live forever, and the righteous will be righteous and die.

Others: Mimi, Mimi, Mimi, etc.

* Sleep: "Taiping Guangji" (Volume 9) Zheng Jiao: "There is a saying in the tomb:' Why don't there be centenarians under the cloud and sleep forever?' "