Swimming is one of the best sports. It brings us countless physical benefits. I believe many people know it. However, swimming may also bring us many disadvantages. Without sufficient protection, swimming is not that safe. Therefore, we need to learn some protective knowledge about swimming. So what are the precautions for safe swimming? There are the following. Swimming must be conducted under the supervision of a parent (guardian). Going swimming alone is most likely to cause problems. If your companion is not a parent (an adult), it is difficult to guarantee that you will receive proper rescue in case of danger. 2. People who are sick should not go swimming. Patients with chronic diseases such as otitis media, heart disease, skin disease, liver and kidney disease, hypertension, epilepsy, conjunctivitis, as well as those suffering from cold, fever, mental fatigue and physical weakness should not go swimming, because swimming may aggravate their condition and cause cramps and accidental coma, which may be life-threatening. People with infectious diseases can easily spread the disease to others. In addition, female students should not swim during menstruation. 3. After participating in heavy physical labor or strenuous exercise, you cannot jump into the water to swim immediately, especially when you are sweating profusely and have a fever all over your body. Otherwise, it is easy to cause cramps, colds, etc. 4. It is not advisable to swim in polluted (poor water quality) rivers, reservoirs, rapids, the confluence of two rivers, or rivers and lakes with a drop in height. Generally speaking, it is not suitable to swim in rivers, lakes or ponds where the water conditions are unclear. 5. Swimming is not recommended in bad weather conditions such as thunderstorms, winds, sudden weather changes, etc. Be sure to do adequate warm-up exercises before swimming. The weather is hot in the summer. If you enter the water without doing warm-up exercises, the water temperature, body temperature and air temperature will be very different. When you suddenly enter the water, your pores will shrink rapidly, stimulating the sensory nerves, which may cause limb cramps at the mildest and reflex cardiac arrest shock at the worst, which can easily cause drowning and death. For some swimming beginners, they should understand this knowledge, which is very important for protecting us. Many people drown every year, so this safety measure should not be underestimated. For some experienced swimmers, they should also pay attention to this knowledge. It is not without reason that the so-called drowning is more common among those who are good at swimming. |
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