Why does a person die? The most common causes of death. Causes of sudden death of a person

At all times people were interested: why does a person die? In fact, this is quite an interesting question, for the answer to which you can consider several theories that can shed light on this situation. There are many different opinions on this subject, but in order to understand what death is and why a person is exposed to it, it is necessary to disclose the riddle of old age. At the moment, a large number of scientists are struggling to solve this problem, different theories are put forward, each of which, one way or another, has the right to life. But, unfortunately, none of these theories at the moment is not proven, and in the near future is unlikely to happen.

Theories related to aging

As for opinions on the question "Why does a person die?", They are all as diverse as they are similar. And the general in these theories is that natural death always comes with old age. A certain circle of scientists has the opinion that old age as such begins at the moment of the origin of life. In other words, as soon as a person is born, the invisible clock starts its reverse course, and when the dial is reset, the person's stay in this world will also stop.

There is an opinion that, until a person has reached maturity, all the processes in the body proceed in the active stage, and after that moment they begin to fade, together with it the number of active cells decreases, which is why the aging process takes place.

As for the immunologists and part of the gerontologists who tried to find the answer to the question "Why does a person die?", From their point of view, as a person ages, autoimmunity increases with a decrease in the response of cells, which, in essence, That the body's immune system begins to "attack" its own cells.

Genetics, of course, say that the whole problem is in the genes, while physicians argue that the death of a person is inevitable due to body defects that accumulate throughout life in a person.

Law of nature

But still, why do people grow old and die? Perhaps, in this way, human nature was conceived, so that the ideal balance on the planet would be ensured? After all, if people never died, then in a short time they would flood the whole planet, thereby leading it to irreversible death. But at the same time it is worthwhile first to draw your attention to the fact that the aging of the body began not with humans, but with unicellular infusorians. The problem is that it is almost impossible to create perfect DNA, even though a person is already able to edit their program. Thus, we can sum up and give a more or less adequate answer to the question of why a person dies. This is due to the fact that human DNA is not able to constantly maintain the balance of the body, without experiencing any losses. In order to maintain this balance and prevent the occurrence of cancer, the vital processes of the body begin to slow down, which leads to aging and as a consequence to death.

Sudden death

Based on international recommendations, sudden death, occurring within 6 hours after the first symptoms, is often due to cessation of the heart or for any other reason that can not be determined. In other words, for doctors sudden death means death without any known cause. For example, if a person was hit by a car and his death was instantaneous, this does not at all mean that a sudden death occurred, since it was caused by injuries incompatible with life. With the definition figured out, now we turn to the symptoms that can serve as a prerequisite for a sudden death.

Symptoms of sudden death

Among the signs that can be 100 percent said about future problems, is the lack of blood circulation. But in order to diagnose this, you need to have elementary skills. When measuring the pulse, it is necessary to understand that it is by no means impossible to do this on the radial artery. Measure the pulse on the external carotid arteries, the best way to do this is to measure the ripple at the neck. This is done in the following way: the number of beats that are counted in 15 seconds must be multiplied by four - and the number of bpm is obtained.

Seizures and lack of consciousness are the second signs that may indicate a state of clinical death or obvious disturbances in the functioning of the human body. In this case, convulsions can be difficult to determine, because they are often very fleeting, and in the turmoil that is created in a stressful situation, it happens, no one pays attention, and very vain.

Having adequate breathing or lack of breathing can also talk about problems. Appropriate breathing means approximately 16-22 respiratory movements in 60 seconds. You can still look at the reaction of the pupils to light, but you can not evaluate this symptom as reliable, since pupils may inadequately respond depending on some drugs or even due to the use of narcotic drugs.

Causes of sudden death

Sudden death (the causes of which can be diverse) are mostly due to ischemic heart disease, the onset of ventricular fibrillation or, more rarely, the asystole of the heart. But, despite the fact that according to statistics about 90% of all deaths are caused by heart problems, there are still quite a lot of problems, because of which it can happen. Despite this, sudden death, the reasons for which were mentioned above, actually threatens only a small percentage of humanity, and those who lead a healthy lifestyle, do not fall into the risk group at all.

Where can sudden death be caught by surprise?

As practice shows, it can catch a person absolutely anywhere in the world and at any time. But the problem is not where the sudden death can happen, but the fact that the correct diagnosis is not always and can not always be determined. It should be understood that there can not be a sudden death in a person who was on treatment in a hospital and suddenly fell dead: it is obvious that clinical studies and analyzes were conducted on the basis of which an anamnesis was recorded, etc. Thus, it is put exclusively clinical diagnosis. The same is true in the case when a person died as a result of a long illness.

The main causes of death

Referring to statistics, heart disease is the main cause of all deaths worldwide. As for the second most common cause of death, it is worth noting and such a terrible disease as cancer. In countries like China, people are more susceptible to liver cancer, while lung cancer is more common in Switzerland, Spain, Austria, Portugal, the Netherlands and Denmark. The cause of death, which occupies the third position on the list, is AIDS (HIV). Such "popularity" is obtained because of Africa, while in the US and Europe they were able to cope more or less with this problem. By the way, as for Africa, the problem of tuberculosis is also relevant in this country. The causes of death due to this disease are due to the fact that the country has a very low level of hygiene, and vaccination is not so widespread that all segments of the population could feel safe.

Among all the countries of the world, Mexico should be especially noted. This is the only country where the main cause of death is cirrhosis of the liver. This is due to the fact that Mexican residents consume alcohol in a relatively large number, as well as because of the large-scale spread of hepatitis C.

End this list of less common diseases, which are "relevant" mainly in Asia and Africa. The causes of death in these countries are mainly renal diseases and respiratory diseases.

Death in a dream

Many believe that the best death is coming at a time when you're sleeping. Perhaps, this is the best option for leaving the life, but nobody can confirm this. But as for death in a dream, this is a fairly common fact, especially among the elderly. The question is: why do people die in a dream?

Thanks to scientists from the United States who conducted research on this issue, it became known that people die at a time when they are in the "kingdom of Morpheus," mainly because of the stopping of breathing. This is mainly the case in older people due to the loss of cells that control the breathing process, sending out signals to the body to produce a contraction of the lungs. In principle, such a problem can occur in a mass of people, its name is obstructive apnea, and this problem is the main reason for snoring. But there can not be such a cause of death as obstructive sleep apnea. This is due to the fact that a person experiencing oxygen starvation (insufficiency), wakes up. And the cause of death is the central sleep apnea. It should be noted that a person can even wake up, but still die because of a lack of oxygen, which will result from a stroke or cardiac arrest. But, as it was already said before, this disease is mainly affected by older people. But there are also those who die, and do not live to the advanced age. Therefore, a quite reasonable question arises: why do people die young?

Death of the young

It starts with the fact that in recent years, about 16 million girls in the age category from 15 to 19 years old are in labor. At the same time, the risks of infant death are much higher than those of girls who crossed the 19-year barrier. These problems are caused by both physiological factors and psychological factors.

Not the last reason is the wrong diet, and this is due to both obesity and problems associated with anorexia.

Smoking. Drugs. Alcohol

With regard to bad habits, such as the abuse of alcohol, nicotine and much less drugs, this problem affects the younger and younger segments of the population every year, which not only puts children at risk, but also themselves.

But still the most common cause of death among young people are unintentional injuries. The reason for this can also be alcohol and drugs, not counting the youthful maximalism, which can not be discounted. Therefore, until the moment when adolescents have reached adulthood, the whole responsibility for moral and psychological education lies entirely with the parents.

What does a person feel at the moment of death?

In fact, the question of the feelings of a person after death worried all of humanity throughout existence, but only recently began to say with confidence that all people at the time of death experience exactly the same feelings. This became known thanks to people who survived a clinical death. Most of them claimed that even lying on the operating table, being in an immobilized state, they continued to hear, and sometimes see everything happening around. This is possible due to the fact that the brain dies at the very last turn, and this is mainly due to lack of oxygen. Of course, there are stories about the tunnel, at the end of which there is a bright light, but there is virtually no truth to this information.

Finally

Deep into the problem and understand it, we can confidently answer the question: why does a person die? Quite often people ask themselves similar questions, but do not devote the whole problem to death, because it is so short that there is no time to spend it on the knowledge of those problems to which humanity is not yet ready.