What are the precautions for swimming in Sanya?

First, pay attention to the time of high tide when swimming at the seaside. After the high tide, the low tide. Please try not to swim at low tide, so as to avoid accidents caused by excessive physical exertion in swimming at low tide.

2. Don't swim in the non-swimming area. The water regime in the non-swimming area is complex, and there are often reefs, aquatic plants, silt and eddies. If you are not careful, an accident may happen. Therefore, we must do a good job of investigation and research in the local area before launching, so as to know fairly well and try to stay away from aquatic plants, reefs, cyclones and silt.

Third, don't drink before swimming. After drinking, a large amount of glucose stored in swimming body will cause hypoglycemia. In addition, alcohol can inhibit the normal physiological function of the liver and hinder the transformation and storage of glucose in the body, thus causing accidents. At the same time, because alcohol will affect the brain's judgment ability, it will increase the chance of swimming accidents.

Fourth, don't swim immediately before and after meals. Swimming on an empty stomach will affect appetite and digestive function, and there will be accidents such as dizziness and fatigue during swimming. Swimming with a full stomach will also affect the digestive function, and it will also cause stomach cramps and even vomiting and abdominal pain.

5. Don't swim immediately after strenuous exercise, otherwise it will increase the burden on the heart; A sudden drop in body temperature will weaken resistance and cause colds, pharyngitis and so on.

Six, to prevent exposure after landing, pay attention to protect the skin, in order to avoid exposure, it is best to apply sunscreen. Get ready on the shore before bathing in the sea, and then soak your skin in shallow water to adapt your body to the water temperature. Please don't climb rocks in the sea bath to avoid being scratched by oysters.

Seven, menstrual women do not swim, menstrual swimming, germs easily enter the uterus, fallopian tubes and other places, causing infection, leading to irregular menstruation, menorrhagia, prolonged menstruation.

Eight, don't eat immediately after swimming, take a break before eating, otherwise it will suddenly increase the burden on the gastrointestinal tract for a long time.

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It is easy to cause gastrointestinal diseases.

Nine, patients with hypertension should not swim, especially intractable hypertension, drugs are difficult to control, swimming has the potential danger of inducing stroke, and should be absolutely avoided.

Ten, don't swim for too long, the skin generally has three reaction periods to cold stimulation. The first stage: after entering the water, stimulated by cold, the skin blood vessels contract and the skin color is pale. The second stage: after staying in the water for a certain period of time, the blood flow on the body surface expands, the skin turns from pale to reddish, and the skin turns from cold to warm. The third stage: the stay time is too long, the heat dissipation of body temperature is greater than fever, and the skin has goose bumps and chills. This is a taboo period for summer outing, so leave the water in time. Generally, the swimming time should not exceed 1.5-2 hours.

Eleven, heart disease patients should not swim, such as congenital heart disease, severe coronary heart disease, rheumatic valvular disease, severe arrhythmia and other patients, swimming should be "stay at a respectful distance from sb."

12. People with otitis media should not swim, whether it is chronic otitis media or acute otitis media. Because water enters the inflamed middle ear, it is equal to "adding insult to injury", which aggravates the condition and even causes intracranial infection.

Thirteen, people with acute conjunctivitis should not swim, the virus of this disease, especially in swimming pools, the speed and scope of infection is amazing. Even healthy people should avoid swimming in the swimming pool in the popular season.

Fourteen, some patients with skin diseases should not swim, such as all kinds of tinea and allergic skin diseases. This not only induces urticaria and contact dermatitis, but also easily aggravates the condition.

15. Pay attention to hygiene after swimming. After swimming, you should immediately wipe off the scale with a soft dry towel. It is best to rinse with water, drop chloramphenicol or boric acid eye drops, and blow out nasal secretions. If there is water in your ears, you can use "jumping on the same side" to discharge the water. Then do some relaxation gymnastics and body massage or take a nap in the sun 15-20 minutes to avoid muscle stiffness and fatigue.

To travel to Sanya, a beautiful tropical city, it is essential to swim by the sea, but the sea is merciless, so pay more attention when swimming, and pay attention to your own safety while having fun.