Experts advise not to swim for more than two hours
Experts remind that alcohol can inhibit the normal function of the liver, hinder the transformation and storage of glucose in the body, and lead to accidents.
The weather is hot, and swimming is people’s favorite summer exercise. Recently, the reporter learned from major hospitals in the city that since the summer, the sporadic cases of pink eye have increased significantly, which has a lot to do with improper swimming protection in public swimming pools. In addition, sprains of waist and neck joints caused by insufficient warm-up before swimming also occur frequently. Experts remind that some people like to drink a little wine before entering the water, or drink beer during swimming breaks. As everyone knows, alcohol will hinder the transformation and storage of glucose in the body, leading to hypoglycemia symptoms such as palpitation, fatigue, nausea and sweating.
Swimming for more than 2 hours is prone to chills and spasms.
Some swimmers soak in the water for half a day, and when they get goose bumps and start to chill, they realize that they have gone too far. Liang Weiguo said that the skin generally has three reaction periods to cold stimuli. The first stage is after entering the water, stimulated by cold, the skin blood vessels contract and the skin color is pale. In the second stage, after staying in the water for a certain period of time, the blood circulation is accelerated, the heat is increased, and the skin turns from pale to light red. In the third stage, the body stays in the water for too long, and the heat generated by the body is lower than the heat dissipated in the water, so that the body temperature regulation function is destroyed, and arterial contraction and venule expansion will occur, resulting in blue skin and black lips, "goose bumps" and even spasms. This is a taboo period for summer outing, so you should leave the water in time. Generally speaking, the swimming duration should not exceed 1.5 ~ 2 hours. If you feel unwell, you should immediately go ashore to dry the water and bask in the sun, and get dressed as soon as possible after your body is warm to prevent colds, tachycardia, muscle strain and other diseases.
Swimming before and after meals will affect digestion.
Swimming while drinking beer? This idea sounds pleasant, but in fact it is not healthy at all. Liang Weiguo pointed out that after drinking and swimming, a large amount of glucose stored in the body is consumed, and hypoglycemia will occur. Alcohol can inhibit the normal physiological function of the liver and hinder the transformation and storage of glucose in the body, leading to accidents. At the same time, alcohol will affect the brain’s judgment ability and increase the chance of danger. Therefore, it is best not to drink alcohol when swimming. In addition, swimming consumes a lot of energy, and it is easy to feel hungry. Some people can’t wait to have a big meal as soon as they land. Experts pointed out that it is advisable to rest for half an hour before eating after swimming, otherwise it will suddenly increase the burden on the gastrointestinal tract and easily cause gastrointestinal diseases for a long time. Liang Weiguo reminded that swimming is actually avoided before and after meals. Swimming on an empty stomach will affect appetite and digestive function, and accidents such as dizziness and fatigue will occur during swimming. Swimming on a full stomach will also affect digestive function, and it will also cause stomach cramps and even vomiting and abdominal pain.
Editor: Zhao Xuanxuan