What To Pay Attention To When Swimming?
What To Pay Attention To When Swimming?
1. Do not swim for more than 45 minutes each time
Experts warn that the best time for healthy swimming is 20 to 45 minutes each time, and don’t take the cold to extend the time and affect your health.
Relevant experts pointed out that people are easy to dissipate heat in water, but for too long in the water, the body produces less heat than water, and the body temperature regulation function will be destroyed. At this time, the arteries in the skin will contract, the venules will expand, and the blood will be expanded. Stasis in the subcutaneous veins, causing skin bruising, dark lips, "goosebumps" on the body, and even cramps.
Some experts also believe that prolonged exposure to water can cause disease due to the attack of chlorine. Most of the tap water supply systems used in cities are disinfected by chlorine. When people are swimming, they are directly in contact with chlorine. These substances will evaporate from the water and be directly absorbed by the skin. Generally, inhalation of chlorine within 20 minutes has no major impact on the human body, but it may cause various diseases in the human body over time.
Therefore, swimming in the water for a long time, especially in very cold water, is not necessarily good for the body. If you feel uncomfortable, you should immediately go ashore to dry your body water, bask in the sun, and put on your clothes as soon as possible after warming up to prevent colds, tachycardia, muscle strain, and other symptoms.
2. Don't swim alone
Even if you are swimming in a swimming pool with high safety, you must be careful not to go swimming alone. Some children have to enter the water under the supervision of adults. Many swimming pool accidents are caused by the negligence of parents and children alone. Playing with water by the swimming pool, and children who can’t know how to water, fall into the pool and call for help to no avail. Therefore, it is best to let the children play in the water under the precondition of an adult.
3. Avoid being too full or too hungry
Swimming is also an energy-consuming exercise. Therefore, do not swim immediately without eating on an empty stomach, otherwise, you will feel weak or even collapse. At the same time, do not go swimming immediately after eating too much. Doing such exercises after eating too much will make the stomach upset and easily cause vomiting. It is best to wait two hours after a meal before going swimming.
