Some people, especially some young people, always like to tighten their belts when taking part in physical exercise, thinking that it looks neat and refreshing. In this way, they will form the habit of tightening their belts, which is harmful to their health. Most of the lower part of human abdomen is the intestine, which must crawl constantly to digest food. If you tighten your belt, it's like tying the intestines together, it won't wriggle well. If you often tighten your belt, sometimes you will squeeze the intestines into the upper part of the abdominal cavity, which will oppress the stomach, liver, spleen and other internal organs, hinder blood circulation, affect the function of internal organs and have a serious impact on the digestive system. In addition, it is easy to cause abdominal pain. So when you take part in physical exercise, you can't tighten your belt. Especially teenagers are in the period of bone growth and development, and long-term tightening of belts will limit the development of bones and muscles, which is very harmful to the growth of the body.

In physical exercise, you can tighten your belt when necessary, but it must not be too tight, and you should loosen it immediately after the exercise. Don't get into the bad habit of tightening your belt.

Second, what is the nose bleeding during exercise?

If nosebleeds occur during exercise, don't be nervous at first, sit down gently, then tilt your head back, breathe through your mouth, hold your nose with your fingers, and press the blood vessels in the middle of the nasal cavity for a few minutes to prevent further bleeding. After this treatment, the small bleeding in the front of the nasal cavity can generally be stopped. If there is a lot of bleeding, you can dip a towel in cold water and apply cold compress on your forehead, bridge of your nose and neck on the bleeding side to make the blood vessels there contract by cold. You can also use clean gauze, cotton and soft paper to block the nostrils on the bleeding side.

If someone helps you, you can quickly soak a pot of hot water, let your nose bleed and sit on the chair with your feet soaked in water. You can also tie the root of the ring finger with a small rope. If the nostril bleeds, tie the ring finger on that side and tie it tightly. If there is no small rope, you can also pinch the root of the ring finger of the same hand with your hand.

If the above measures are ineffective, you should go to the hospital for examination and treatment quickly. How to prevent nosebleeds? First of all, don't pick your nose with your fingers to avoid damaging the nasal mucosa and blood vessels. If the nose is dry, you can gently wipe your nostrils with a towel or gauze dipped in warm water, or fumigate with steam of boiling water. In sports, especially when running and jumping, we should pay attention to the forefoot landing and make full use of the cushioning effect; In confrontation activities, head and nose trauma, strong vibration and collision should be avoided. Drink more boiled water and eat more fresh fruits and vegetables to keep the nasal mucosa moist and enhance resistance.