Introduction: Fitness is a very good way to increase muscle mass. After all, everyone can feel more refreshed, so fitness is welcomed by many people, but some people still don't know much about fitness. Some people say that fitness accelerates human metabolism and physical wear, leading to shortened life expectancy. What should we think?

This statement is groundless. Fitness can really accelerate human metabolism, but this metabolism refers to the consumption of oxygen and sugar, so fitness can promote the growth of muscle fibers to a certain extent and achieve the effect of reducing fat. But the aging of human body is controlled by genes and cells, and the benefits of cells are limited. It is incorrect to say that cells will accelerate aging because of the increase of heart metabolism. Cells are aging every day, but new cells will appear after aging, and human aging is mainly manifested in enough cells aging, but no new cells appear, which will lead to shortened life span. Fitness won't shorten life span, so don't be frightened by this pseudoscience. If you can do more exercise to increase muscle mass, you can avoid muscle atrophy in old age to some extent and make your body stronger.

Exercise moderately, but it is inevitable that some people who exercise in the wrong way eat a lot of protein powder, obviously all over the body are muscles, but these will only make the body's immunity decline. There are still some people who exercise excessively, so in this case, muscle dissolution will occur, causing harm to the body. And inevitably, some athletes do get some injuries in the process of sports, mainly because they pursue too much exercise. Therefore, in daily life, we should set an appropriate amount of exercise according to our daily life and exercise step by step. After all, ordinary people don't ask too much, as long as they feel better, so there is no need to ask too much exercise.