Movement is the inherent nature and existing mode of matter, and it is the inherent fundamental attribute of matter. There is no matter that does not move, and there is no movement without matter. Movement is conservative, that is, it can neither be created nor destroyed, but its concrete forms are diverse and mutually transformed, and the total amount of movement remains unchanged during the transformation. Strenuous exercise is two kinds of situations in physical education class, after exercise training and competition: one is that some people binge drink because of thirst during exercise or after exercise, resulting in abdominal distension, stomach pain and other uncomfortable feelings; The other is that although some people are thirsty, they are still bound by a kind of bondage, and they can only wait for a long time after exercise, leading to dehydration and various diseases.

First, don't squat and rest.

This is a very common practice. If you feel tired after exercise, just squat down or sit down, thinking that you can take a rest. In fact, this is a wrong practice: if you squat down to rest immediately after fitness exercise, it will hinder the blood return of lower limbs, affect blood circulation and deepen physical fatigue. In severe cases, gravity shock will occur. Therefore, after each exercise, we should adjust the breathing rhythm, walk and swing our arms, do some relaxation and adjustment activities, and promote the blood of limbs to return to the heart, so as to pay off the "oxygen debt", speed up physical recovery and eliminate fatigue.

Second, don't be greedy for cold drinks.

Exercise often makes people sweat, especially in summer. With the consumption of a lot of water, there is always a feeling of thirst after exercise, and water is urgently needed. Mainly young people, like to buy cold drinks to quench their thirst. But at this time, the human digestive system is still in a state of inhibition and its function is low. If you eat a lot of cold drinks for a period of time to quench your thirst, it is easy to cause gastrointestinal cramps, abdominal pain and diarrhea, and induce gastrointestinal diseases. Therefore, don't eat a lot of cold drinks immediately after exercise, you can add a little boiled water or salt water.

Third, don't lower your body temperature.

During exercise, blood vessels on the body surface dilate, body temperature rises, pores relax, and perspiration increases. If you enter the air-conditioned room immediately after exercise, or take a cold nap at the tuyere, or use a cold water punch to cool down, your skin will be tight and sweaty, causing physiological disorders such as body temperature regulation and decreased immune function, which will lead to diseases such as colds, diarrhea and asthma.

Smoking after exercise, the air inhaled into the lungs is mixed with a lot of smoke. On the one hand, besides reducing the oxygen content, it is not conducive to paying off the "oxygen debt" and it is difficult to eliminate physical fatigue; On the other hand, when the human body inhales this foggy air, it will affect the gas exchange in the alveoli of the human body, resulting in chest tightness, asthma, dyspnea, dizziness, fatigue and other symptoms due to insufficient oxygen supply after exercise.

So there will be blood. Hope to adopt.