Why do we grow old? The mystery of the nine causes of physical aging!
Why do we get old? This is a question that many people are asking, and recently scientists have given the answer to this question.
Item 1: There is an error in DNA replication. We must know that our body replaces a large number of cells every day. These cells are actually repeating and being replicated. However, over time, some DNA may be misspelled, and these DNA may be If it is accidentally inserted or deleted, what will happen at this time, ranging from causing disease to the body mechanism, or producing cancer cells in the worst case. Scientists have found that there are a large number of damaged cells in the body of the elderly. These cells are the result of incorrectly copied information. If we find a way to repair these cells, it might be possible to extend lifespan.
Article 2: Errors in gene expression. Gene expression means that DNA is interpreted as a certain manifestation of the body, and this behavior is controlled by proteins. When our bodies age, these proteins become loose and become somewhat unable to express correctly or Silencing, which means that parts of the protein are not made, is even more troublesome because once this silencing is understood to be mis-made, it causes cells to mutate, and if we reverse these cells, it will improve our neurons very well, thereby reducing Memory loss.
The third; the chromosomes are shortened, and there is a telomere at both ends of the chromosome, which is used for replicating DNA. As our body ages, this telomere will continue to wear and tear, and eventually lead to loss of function. Once the telomeres are exhausted, the cell If we find a way to improve telomere recovery, we can change this situation. Now, scientists have found a way to increase the level of telomerase in mice.
Article 4: Protein degradation. In cells, protein is continuously produced. It is an important source of energy supplement and activity for cells. Protein must be regularly updated in cells, but over time, this function becomes more and more. When these useless proteins continue to accumulate, they will become toxic, and the cells will naturally not be able to continue. After research, scientists have found that the accumulation of these useless proteins is one of the main causes of Alzheimer's disease, which is old age. dementia.
Article 5: Senescent cells are immortal. When the cells in our body are destroyed, they will show a strong desire to survive, that is, they refuse to die. These are zombie cells. Their appearance will cause inflammation in our body organs. These zombie cells are senescent cells. This has become a vicious circle. After people age, they drive cells to age, and at the same time, these senescent cells accelerate the aging of the body. Scientists say that if these senescent cells are improved or removed, we can restore our physical vitality and naturally prolong our life.
Article 6: Mitochondrial dysfunction and aging also change the level of intercellular communication throughout the endocrine and neuroendocrine systems. Information originally transmitted through hormone molecules circulating in these systems, such as insulin, is often lost. In the human body, mitochondria are The porter, which transports our energy and oxygen into our body tissues, and its inactivity can cause the destruction of cellular proteins, triggering a cascade of reactions in the body, but scientists have found a way to restore mitochondrial function.
Article 7: Metabolism is out of control. As people grow older, many people begin to gain weight and begin to lose their shape. The reason is that cells become more and more inaccurate in detecting glucose or fat content in the body, so some fat and sugar cannot be properly obtained. deal with. The accumulation of excess fat in senescent cells is not because the elderly ingest too much fat, but because the cells cannot digest fat normally. Once this function fails, it will lead to diseases such as diabetes.
Article 8: Tissues stop renewing. We must know that our bodies often wear and tear. Under normal circumstances, our bodies will repair themselves. However, as we age, this function begins to strike. The main reason is that stem cells are depleted. , In fact, it is not completely exhausted, but the stem cells lack activity and become a little sluggish.
Article 9: The communication and interaction between cells have stopped. In order to ensure the normal functioning of the body, the cells must constantly communicate with each other, and they transmit signals through the blood and the immune system. But as our bodies get older, the ability of cells to communicate also deteriorates, some cells become unresponsive, and the appearance of senescent cells destroys this function. Aging also changes the entire endocrine and neuroendocrine system. At the level of intercellular communication, information that would otherwise be conveyed through hormone molecules circulating in these systems, such as insulin, is often lost.
This is why we grow old, do you understand?
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