Nowadays, people attach great importance to fitness, because it is a bit uncomfortable to have a good material life but not a good body to enjoy. However, there are too many praises and controversies about fitness. The saying that life lies in exercise has spread from the west and has rotted in the streets. In recent years, people also quite agree with it. However, the oldest person in China, 100 years old or older is counted as one. Most of them have no long-term fitness habits, and their muscles are relatively thin. Most of them are as thin as firewood, but why can they live longer?

Whether fitness can make people live longer also varies from person to person. Whether a person can live a long life depends to a great extent on the inherited living environment, personal mentality and long-term lifestyle, rather than whether fitness can be decided by a muscle. However, there are related experiments abroad, which prove that from the big data of the experiment, the life expectancy of men with strong muscles is indeed longer than that of men with thin muscles or obesity.

Don't think that centenarians spend all day in the sun at home, and the amount of exercise is not low. Although the miscellaneous farm work seems to be few, it stopped at the beginning, and the intensity is not lower than fitness training. Then why don't they have developed muscles? This is related to their eating habits. Moreover, the digestive system will naturally decline when people get old, and the absorption rate of various nutrients is far behind that of young people, so the elderly are basically thinner.

It is obvious to all that fitness can delay aging. People who have no habit of fitness exercise look much older than those who exercise for a long time. Because there is no fitness training, the metabolic rate will decrease, leading some people to get fat in middle age, and getting fat means getting old. People with fitness habits, due to the high metabolic rate of long-term exercise, keep various physical functions such as muscles in good condition for a long time, thus slowing down the decline of the body.