The refined mechanism of death does not work according to one rolled back scenario. The question of why people die is relevant for many millions of years of human existence. At first glance, there is nothing mysterious here, but the real answer to this question is much more complicated than it seems. These scientific facts will provide a fresh perspective on the process of dying.
We do not die to make room for younger generations
Genes are selfish and each individual organism is a vehicle for gene transfer. They are designed to facilitate the effective survival of their copy. Because parents and offspring use the same resources, the death of one parent creates a survival chance for the offspring. However, from the point of view of evolution, this scheme has shown its inconsistency. The developed intellect of the parent has become a more effective tool for obtaining resources than giving up the food supply. That is why the average life expectancy of a person is growing today - all the intellectual achievements of mankind, such as drugs and cars, work for this.
Body cells mutate with age
With age, the cells of the body become more susceptible to mutations than in youth. Sometimes such mutations are malignant - cancer and related diseases arise. However, evolution has made it so that with a certain set of factors, mutation processes can be completely stopped. The way of life, ecology and human nutrition play an important role here - the right combination of these factors can prolong the earthly existence to an unlimited age.
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Reversible and irreversible damage
The fact that death is not at all what it seems is, for example, the phenomenon of regeneration in the animal kingdom says. Some species of animals regrow their teeth, amphibians can get new limbs, and humans are able to recover from severe injuries. Natural selection has taught us to repair non-lethal damage with amazing efficiency, the full potential of which has not yet been fully explored. Just as the salamander grows a new tail, the wounds of people are healed with new tissue, and the bones grow together at the site of the fracture - there is a clear reluctance of the body to accept death at the first convenient occasion.
Long life genes
In humans, there is a whole set of genes dedicated to keeping the structure of the genome intact. They are responsible for the precise restoration of the genetic chain in the event of damage to the body. They act as triggers for recovery if a cell has too many mutations. This suggests, first of all, that leaving offspring is not a primary biological task. It is the longest possible reproductive life, that is, a long, happy and healthy life.
Death is not the purpose of life
Nature is arranged in such a way that any person born on Earth dies after some time. But this does not mean at all that life is an endless striving for death. Our body is tuned to a long and fulfilling life, and a person is in a position to help him in this.
ANDREY BUBNOV