1, don't rest immediately after fitness. After each exercise, we should adjust the breathing rhythm and properly carry out some low-calorie activities, such as walking slowly and taking a deep breath, so as to promote the blood of limbs to return to the heart. Especially when you stop to rest immediately after strenuous exercise, the rhythmic contraction of muscles will stop, and a large amount of blood that originally flowed into muscles can't flow back to the heart through muscle contraction, resulting in a decrease in blood pressure, temporary cerebral ischemia, palpitation, shortness of breath, dizziness, pallor, and even shock and fainting.

2. It is not advisable to drink plenty of water after fitness. Don't drink water immediately after exercise, especially after strenuous exercise, and don't drink a lot of water, because drinking a lot of water will reduce the salt content in the blood, which is prone to muscle spasm and even cause headaches, vomiting and other diseases. Therefore, don't drink water immediately even if your mouth is thirsty again after exercise, and don't drink too much water at a time. In order to keep healthy, you should adopt the method of "drinking less and drinking more".

Don't lower your body temperature after fitness. After body-building exercise, human blood vessels dilate, body temperature rises, pores dilate, and perspiration increases. If you enter an air-conditioned room immediately, or take a cold nap at the tuyere, or rinse with cold water to cool down, your skin will tighten and stop sweating, leading to physiological disorders such as temperature regulation and decreased immune function, and causing diseases such as colds, diarrhea and asthma.

Don't eat immediately after fitness. When people exercise, the whole body blood intensively supplies the needs of moving organs, while the supply of various organs in abdominal cavity is relatively reduced. If you eat in a hurry at this time, it will increase the burden on the digestive organs, cause dysfunction and even cause various diseases.