New discovery about the secret of being young and not old

The secret to never-ending babies lies in awakening stem cells that are "sleeping" in the skin, according to a new study.

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Throughout life, people continuously produce new skin and exfoliate skin. However, until now, the scientific community has not agreed on the exact mechanism of this process.

A computer model discovered, as we age, we lose the ability to activate important stem cells on the activity and regenerate damaged skin. British and American scientists say this finding may open up the prospect of developing new beauty therapies that permanently remove wrinkles on the skin.

Activating the stem cells that are fast asleep can help keep the youthful beauty alive.(Artwork: Corbis)

In the longest form of this study, scientists conducted a complex real-world simulation to test the three most popular hypotheses about how human skin regenerated in three years. Dr. Xinshan Li, a member of the research team, said: "The most likely hypothesis is that skin with stem cells is" fast asleep "in the bottom layer of the skin and does not continually divide to create those However, these sleepy cells can be awakened to work if the skin is damaged or the number of more mature skin forms drops, ensuring that the skin can be continuously re- born in all conditions ".

Stem cells are the "host cells" of the body, with the ability to become many different cell types. Dr. Li explained, every time we wake up stem cells to heal wounds or add numbers to other types of cells, some of them will not return to their previous sleep state, causing The number of stem cells decreases. That helps explain why older skin is harder to heal and why human skin changes with age. Understanding the mechanism will help researchers find ways to combat the aging process and possibly dangerous skin cancer.

Adverse effects from the environment due to ultraviolet radiation or chronic injury are thought to be a factor in the "sleepiness" stem cells that nourish mutations, which can cause skin cancer like epidermal cancer. tissue. " Stem cells can tolerate mutations for years but have no effect if they're still in a sleep state. However, when they start dividing, such as to heal a wound, the process can trigger the development of cancer , " said researcher Li.

Other parts of the body, such as the lungs or intestinal wall and cornea, in the human eye also regenerate in the same way as the skin.