Work and rest is a dialectical and unified relationship, which is both opposite and coordinated. Both are the physiological needs of the human body. In this world, one must have a job and a place, neither overwork nor leisure. Sun Simiao's "prepare one thousand pieces of emergency. Daolin Nourishes Nature says: "The way to strengthen the body lies in diligence, not being tired and strong." The ancients advocated the "neutralization" of combining work and rest, and there were often festivals. Long-term practice has proved that moderate work and rest plays an important role in human health care.

In the course of life, it can't be absolute "static" or relative "dynamic". Combination of motion and static, proper rest, can really play a role in health care for human body. Suitable for work and beneficial to human health. Regular and reasonable physical labor is beneficial to exercise bones and muscles, unblock qi and blood, strengthen physical fitness, enhance physical fitness, exercise will, enhance perseverance, and thus maintain the ability of life activities. Modern medical research believes that reasonable labor is beneficial to cardiovascular, endocrine, nervous, mental, sports, muscle and other systems. For example, labor can promote blood circulation, improve respiratory and digestive functions, increase basal metabolic rate, stimulate the ability of cerebral cortex to regulate various parts of the body, and regulate the spirit. Proper rest is also a physiological need, and it is an indispensable method to eliminate fatigue, restore physical strength and energy, and regulate body and mind. Modern experiments have proved that fatigue will reduce the body's disease resistance and be easily attacked by germs. Some people injected the same amount of bacteria into tired and non-tired monkeys at the same time, and found that the tired monkeys were infected and sick, but the other side was safe and sound, which showed that reasonable rest was an important means to enhance the immune ability of the body.