The weather in Wenxi town

Summer is coming and the weather is getting hotter and hotter. In order to prevent students from drowning due to summer heat and other reasons. According to the arrangement of the school, the Political and Educational Affairs Office organized each class to hold a class meeting with the theme of "summer drowning prevention safety education" to educate students:

1. Don't swim in the water without permission, don't swim with others without permission, don't swim in unsafe and uneasy waters, and don't swim in unfamiliar waters.

2. Don't go swimming alone, and don't go to places that don't know the bottom of the water or the water, or places that are dangerous and suitable for drowning casualties.

Try not to swim in rivers, seas, canals and reservoirs. Every year, children drown because they swim alone in these places. The water in these places seems calm, but because there is a vortex hidden underwater, it may be swept away by the vortex as soon as it enters the water.

If you want to swim, you must choose a swimming venue with good conditions and high safety factor. You must also be organized to swim under the guidance of parents or people familiar with water. Take care of each other.

Pay attention to your health. People who are prone to cramps in limbs should not take part in swimming or swim in deep water. Get ready before you go into the water and exercise first. If the water temperature is too low, wash your body with shallow water first, and then go swimming after getting used to the water temperature. Students with dentures should take them off to prevent them from falling into the esophagus or trachea when choking.

6. Be self-aware of your water quality. Don't try to be brave after entering the water. Don't dive and snorkel rashly, and don't fight with each other, lest you drown by drinking water. Don't swim in rapids and whirlpools, let alone drink and swim. 7. If you suddenly feel unwell during swimming, such as dizziness, nausea, palpitation and shortness of breath. , should immediately go ashore to rest or call for help.

8. Don't panic if you have a calf or leg cramps in swimming. You can kick or jump hard, massage and cramp, and call your partner for help.

Man-made causes of drowning:

If you don't know water and don't have a correct estimate of your physical strength and swimming ability, you may drown if you enter the water. Even people who are used to water will suffer from limb spasms and convulsions under water for some reason, resulting in loss of autonomy and sinking. The reason may be that you didn't do enough preparatory activities and were suddenly stimulated by cold water after entering the water; It may also be that swimming for too long makes the body lose too much carbon dioxide. Swimming in the waters with weak safety awareness, private initiative and closed, limbs may be entangled with aquatic plants at the bottom of the water, leading to sinking, or they may be trapped in the sediment and lose control. Teenagers lack the safety concept of swimming, frolic with each other, panic after an accident, miss the opportunity of treatment, and lead to drowning. People who are in poor health and suffer from chronic diseases such as heart disease, anemia and epilepsy may relapse due to the stimulation of cold water when swimming, leading to drowning.