Why do we age? The new theory of scientists

If careful observer looks at our society from, you will certainly notice the widespread obsession with anti-aging. According to experts, the market of anti-aging to reach 271 billion dollars over the next five years. Already, consumers are offered a variety of anti-wrinkles, including hair restoration services, their colors, as well as numerous beauty treatments. In the future, these goods and services will be even greater. At the same time, so popular creams and anti-wrinkle focused primarily on the external aspects of aging and eliminate only its symptoms and not on the internal key aging factors. But what science knows about aging?

Why do we age? The new theory of scientists

Maybe in the future we will be able to defeat aging

On what basis the popular theories of aging?

Researchers have put forward many theories of aging with the emergence of two major categories: the programmed aging theory and the theory of errors in DNA. Programmable theory based on the idea that aging is genetically programmed in the body and can be a byproduct of reproductive reasons. Theories error based on the concept that dysfunction of the metabolic pathways and the accumulation of metabolic by-products, such as reactive oxygen species (ROS) or free radicals gradually degrade cell and tissue structures of the body, resulting in possible loss of vital functions. To better understand the theory of aging, let us recall that an integral part of it - evolution by natural selection. It is no secret that each of us has the phenotype - specific genetic characteristics, which may change as a result of genetic mutations. Some mutations do not affect us, unlike other. Good mutations are transmitted to future generations, the poor eventually disappear.

Why do we age? The new theory of scientists

Some people can not come to terms with their own aging

However, many genetic diseases still exist. Experts believe that the thing is that some of the mutations that lead to diseases later in life, can have a positive effect on the body at an early age. So, a great example is the gene mutations that cause Huntington's disease. They improve fertility, reduce the risk of cancer and protect against malaria. Also, mutations associated with cystic fibrosis improve fertility. And these are just some examples of many. Thus, our knowledge of aging are based, as it was written above, two main theories. But if the scientists have moved forward in the study of the nature of aging?

This is interesting: Why do we not live more than a hundred years?

A new theory of aging

In 2006, a new theory has been put forward by scientists. According to it, we grow old because of the activity of certain proteins and genes that are responsible for their creation. The role of these proteins is to let cells in the body, whether the nutrients available. Thus, some proteins also are enzymes, that contribute to the chemical reactions in the body. especially interested among these experts enzymes one called TOR.

Why do we age? The new theory of scientists

The life of every living organism on the planet, as well as the life of the planet and our galaxy anyway ever end

TOR enzyme activity gives instructions cell growth. This is necessary to the human body in the early stages of development and puberty. However, the need TOR later in life and in older age is eliminated. Today, scientists became aware of the fact that the increased activity of the enzyme associated with the development of many diseases, including cancer.

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Does this mean that the enzyme TOR and other enzymes and genes are a cause of aging? In the course of the research, the experts found that the TOR accelerates cell growth, but at the same time reduces job protection mechanisms, such as antioxidants. This means that it is now in the DNA damage can be seen as the result of overly active work of some enzymes and genes that are responsible for them. However, it is only the result of aging, rather than its causes. Specialists call this new theory of aging hyperfunction.

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Will we be able to defeat aging?

Despite the fact that many scientists in laboratories around the world are trying to unravel the cause of aging, we are that we will be able to pay these processes is not reversed in the near future. After all, aging is an incredibly complex process. Perhaps this kind of fee for the survival of our species. It is also possible, it's all about selfish genes - this theory was advanced by British biologist Richard Dawkins. According to Dawkins, all living organisms are "survival machine for the genes." This means that the main goal of all living organisms - is the transfer of genes, rather than the life expectancy of a particular living being.

Why do we age? The new theory of scientists

A person can be happy at any age

No matter with which the theory of aging, you agree with and what not, should listen to what scientists already know. This wealth of data on healthy aging. In the end, proper nutrition, sleep, exercise and taking care of their health, not only today but in the future can make your life better.