The body’s working ability changes throughout the day. From 8 am to 12 pm, and from 2 pm to 5 pm, the chicken breast speed, energy, and strength are at their best, and if physical exercise and physical training are carried out during this time, better effects can be achieved. While from 3 am to 5 am, and from 12 pm to 2 pm, it is in the lowest state, and if sports competitions are carried out during this time, it is easy to feel tired, and when the ‘load’ is too large, the probability of knee joint injury is high.

This indicates that we should, according to the possibility of objective reasons, try to choose the most appropriate time to engage in outdoor activities in order to achieve good sports and training effects.

For physical health, it is reasonable to start physical exercise at any age. It is better to exercise more when there is time and less when there is no time, as long as you move, even if it is just one move. When is it best to exercise? This is a controversial issue.

There is such a saying that plants undergo metabolism all night, releasing a lot of carbon dioxide, so the concentration of carbon dioxide in the mountains in the morning is relatively high. Some dust also floats in the air, which is not good for people’s health. In addition, people’s blood pressure is relatively high in the morning, and it is easy to have problems. In fact, whether to exercise in the morning depends on the purpose of exercise.

If it is for weight loss and to improve memory of sports skills, the morning is very good. When people wake up in the morning, they have already consumed a lot of calories from the previous night. If they don’t want to eat and exercise at this time, it will cause a result – ‘igniting’ the body fat. Because in the morning there is no energy, and there is also part of glycogen in the liver. When the concentration of this glycogen decreases to a certain level, the ‘ignition’ of body fat will become the core phosphagen method, making weight loss possible at this time. Therefore, morning physical exercise has unique benefits for weight loss and the prevention of fatty liver. In addition, when people are in the morning, it is easier to master all kinds of professional skills, such as learning aerobics, ballroom dancing, Tai Chi, etc., than at other times. Therefore, the health benefits obtained from morning exercise are more in some aspects.

Ancient people emphasized ‘rise and dance at the sound of the cockcrow’, and physical exercise was generally chosen in the morning. It is not the key reason that the air in the morning is rich in carbon dioxide and the environmental pollution is relatively serious. In fact, environmental pollution such as tail gas emissions is also very serious during the day, and it can release lead, excessive heavy metals, and some organic chemical waste, such as benzene. The blood pressure in the morning is high, and it can be adjusted according to the medication. Therefore, when it is best to exercise is not definite. It also varies from person to person.