Is manual labor equal to exercise? Is it good for health?

Can manual labor really replace the role of physical exercise? Obviously not. Physical labor can not only replace physical exercise, on the contrary, it is the existence of these labors that creates sports, develops the value of sports and puts forward various requirements for sports. The action of manual labor is relatively simple, and the burden of muscles in all parts of the body is uneven. However, all kinds of exercises can make the muscles of the whole body move purposefully, especially in the parts with little activity during labor, which can accelerate the recovery of tired muscles. Another feature of manual labor is that the muscle load is heavy but the cardiopulmonary function is insufficient, and physical fitness can make the cardiopulmonary function better exercised. In addition, labor often does not consider the laws of human joints and muscles in action, and the result of long-term labor is not only harmful to the body, but also harmful. This needs people to make up for it through appropriate physical fitness activities. It is becoming people's knowledge that exercise is of great benefit to manual workers. For example, the local muscle load is heavy during manual labor, so the elimination of metabolites in muscles should be accelerated after labor. Experiments show that proper muscle activity can accelerate the elimination of metabolites more than complete quiet rest. For example, when you do light activities (walking or jogging), lactic acid in your blood is eliminated twice as fast as when you are completely at rest. Therefore, after physical labor, proper physical fitness activities can accelerate the elimination of fatigue. I think so, too. Since sports are developed because of manual labor, on the other hand, as long as manual labor is timely and appropriate, the effect is equal to sports.