2. Because the cerebral cortex is extremely sensitive to alcohol.
3. The cerebral cortex is excited and agitated for a short time after drinking.
4. After a long period of inhibition, there will be a feeling of being slow and sleepy.
5. At this time, the brain function is in an unstable state, and the body control ability decreases.
6. If you exercise the cerebral cortex in this situation and make great efforts, it will damage the brain function.
7. And alcohol can promote muscle fatigue.
8. Muscles need a lot of blood and oxygen supply when working, which often leads to fatigue due to insufficient oxygen supply and increased lactic acid produced by muscles.
9. In addition, alcohol will accelerate the production and accumulation of lactic acid in muscles, slow down the elimination of lactic acid, which is not conducive to the recovery of the body and affects muscle growth.
10. It can be seen that drinking alcohol before or after fitness is a taboo.
1 1. A cold means stopping exercise: I have heard some rumors before: it doesn't matter if you have a cold and sweat in the gym. Actually, this statement is misleading. Some people think that after taking part in fitness exercises and sweating, the symptoms of colds will be alleviated.
12. This is because during exercise, sympathetic nerve excites the heart, speeds up breathing, improves the function of the defense system composed of white blood cells and other antibodies in the body, expels toxins faster in the body when sweating, and relieves cold symptoms.
13. This situation only happens to young people with mild symptoms or strong immunity at the beginning of a cold, but for most people, taking part in fitness exercises when they have a cold does more harm than good.
14. Don't exercise within one hour after meals: going to the gym immediately after meals is easy to cause indigestion.
15. The food in the gastrointestinal tract fills the top of the diaphragm for a period of time after eating, which affects the movement of breathing.
16. After eating, blood is concentrated in the digestive system. If you exercise at this time, the blood will be scattered to the sports organs for muscle work, which will affect the digestion and absorption of things.
17. In addition, the motor organs are prone to dizziness, pallor and vomiting due to insufficient blood supply.
18. Avoid fasting exercise: fasting blood sugar is low. When blood sugar is low, the brain lacks oxygen, and walking will lead to dizziness and limb weakness.
19. Because of the severe symptoms such as shock, it is difficult to complete the fitness plan.
20. If the body does not store carbohydrates (sugar) to provide fuel for exercise, it will consume more muscles in the process of harmonious exercise.
2 1. It is forbidden to take a bath immediately after fitness: if you take a bath without shrinking the pores on the body surface, it will hinder the discharge of toxic waste gas, pollute the ecological environment of internal organs, lead to decreased immunity and cause diseases.
22. In addition, due to the continuous contraction of muscles during exercise, the amount of exercise is gradually increasing. In order to meet the needs of exercise, if you take a bath immediately, the blood vessels of muscles and skin will expand, and the blood flowing to muscles and skin will increase continuously, so that the remaining blood is not enough for other organs.
23. Mild dizziness and severe shock.
24. Don't exercise in a bad state: exercising in a low state will cause excessive fatigue or sports injury, which not only affects the quality of exercise, but also is not conducive to physical recovery and muscle growth.
25. extremes can be counterproductive.
26. Avoid drinking a lot of water after exercise: Drinking a lot of water after exercise has a bad effect on the body.
27. It is considered that at this time, the blood in the body is concentrated on the limbs and body surface, while the blood vessels in the digestive tract are in a state of contraction, and the absorption capacity is weak. If a large amount of water enters the digestive tract again, it will increase gastrointestinal peristalsis and even cause stomach cramps.
28. In hot summer and when sweating, drink a small amount of light salt water several times to supplement the water and salt lost in the body or replenish sports drinks in time.