How does muscle remember? Memory is preserved in the form of nuclei, and the number of such DNA-containing nuclei increases dramatically as muscles move. The researchers point out that, unlike previous understandings, those nuclei do not disappear with muscle degradation, and when the muscles are exercised again, they can quickly restore their strength.
"According to the research results, it is speculated that exercising more when you are young will help prevent the decline of old age. At the same time, it also raises a question: How long should the athlete's suspension time be?"
The researchers used a method to increase the muscle load of the rat's foot to simulate the effects of exercise on muscle cells. From the sixth day of the experiment, the number of nuclei increased as the muscles worked; in the 21-day trial, the number of nuclei per fiber cell in these foot muscles increased by about 54%; and from the ninth day of the trial Muscle cells also began to increase, and the number was 35% more than before the test.
In another set of experiments, after two weeks of muscle strengthening, the researchers cut off the nerves that connect the muscles and atrophy their muscle tissue. As the muscles shrink, the number of cells is reduced by about 40% compared to the condition after muscle strengthening, but the number of nuclei remains unchanged.
"I don't know if these nuclei will always be in the muscles," the researchers said. "But it seems that their effects on the muscles will last for a long time. Because the new nuclei don't die, they can rebuild muscles at any time." Protein, which gives muscles a memory-like function."
With the support of this theory, it is more important to exercise more when you are younger! Even if you are old, wake up the muscles of the memory magic, relying on the strong "old" in youth can also be better? how about it? Have you thought about what to do next?
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