Exploring Old Age and Aging

Searching for old age and aging is physical, as the body reaches its maximum size and strength, we will mature from about 25 to 30 years old. After that, the tissues and cells of the body are always rebuilt and updated. Nutrition, rest, exercise and stress influence the length of time to balance body tissue wear and reconstruction. Researchers say that "When more cells die than can replicate it will replace fibrous inactive substances called collagen." When the process of life is delayed, it begins to aging, strength and ability begin to decline.

In his new book, researching aging for decades and writing this article on his website, "Cracking Aging Code: New Aging Science and Their Impact on Young People" explores the science of aging It is. I will present his view. My own theory is the reason why nearly all organisms beyond us, not just microbial levels, are ages. (The co-author of the book is Dorion Sagan, but the theory is Mitteldorf.) Mitteldorf is an expert on evolution - although it was an astrophysicist - he criticized some of the current aging theory critically and critically Did. Then he proposed his own completely different theory. He is very persuasive. Regardless of his theoretical fate, he will provide sufficient evidence to support other theories, and in my opinion his theory should be at least taken into account

The most widely accepted theory of aging is the evolutionary aging theory of aging. Unlike previously programmed theories of evolution and aging, the latter is trying to find out why evolution is good for aging the theory of evolutionary decline focuses on the fact that natural selection does not affect posterity features I will set. Natural selection functions through reproductive life, so it has little effect on later life. In the wild, predators and accidents ensure younger people than the elderly. Genes and mutations that have a deleterious effect, but only appear after the end of reproduction, do not affect reproductive success and may therefore be handed down to future generations. In 1952, Peter Medawar suggested that natural selection does not affect the process of life, and that genes with harmful later life effects may continue to be passed down from generation to generation.

Why are we old? Why is there no natural choice to "eliminate" genes that cause a decrease with age? Several hypotheses have been proposed, but the most important is the inherent 'risk' of life. As most organisms can not survive the elderly, natural selection is impossible because they do not express genes or phenotypes associated with harmful aging. Another hypothesis is that they can choose the effect of genes or phenotypes, ie aging, that are beneficial in childhood, even if they later have a negative impact. One such hypothesis - we may think of it as a "late early, dead youth" hypothesis - accused the reproduction of aging. Suggesting that increased investment in reproductive truth is actually at the expense of posthuman physiological decline (Williams, 1957; free PDF). This hypothesis may actually be worthy, as a tired parent may tell you.