The thousand-year-old tortoise is eighty thousand years old, and the longevity is greater than that of the Nanshan tortoise... The tortoise is a symbol and representative of longevity. Most tortoises have a lifespan of at least several decades. What's more, for hundreds of years, then do you know why turtles can live so long? Let's find out together!

1. Turtle With a hard carapace, its head, abdomen, limbs and tail can be well protected from external damage. At the same time, tortoises also have the habit of lethargy. They sleep for about 10 months a year. They have to hibernate and hibernate. In this way, their metabolism is slower and energy consumption is extremely low.

Second, in human and animal cells, there is a clock about cell division, which limits the generation of cell reproduction and the number of years of its existence. Human embryonic lung fibroblasts are difficult to continue when cultured in vitro to 50 generations, while tortoises can reach 110 generations. This shows that the number of reproduction generations of turtle cells is closely related to the lifespan of turtles.

3. After the turtle's heart was taken out of the body, it could beat by itself for 24 hours, which shows that the turtle's heart function is strong, which plays an important role in the turtle's lifespan.

4. Turtles have no intercostal muscles, so when breathing, they must use the lower part of the mouth to move up and down in order to inhale the air into the mouth and press it to the lungs. When the tortoise breathes, the head and feet stretch and contract, and the lungs also inhale. This special breathing action is also the reason for the longevity of the tortoise.

5. There are no carcinogenic factors in the tortoise body, so it will not cause cancer.