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What are the precautions for swimming at the beach in summer

Four seas net: summer, go to the beach before swimming must know the precautions. Do not drink alcohol before swimming, and hypoglycemia will occur when a large amount of glucose stored in the body is consumed after drinking. In addition, alcohol can inhibit the normal physiological function of the liver, hinder the transformation and storage of glucose in the body, thus causing accidents.

Precautions for swimming at the beach

When swimming at the seaside, you should pay attention to the time of tide, and the tide will ebb after the high tide. Please try not to swim when the tide is low, so as to avoid excessive physical consumption when swimming back to the low tide;

Don't swim in the non swimming area. The water condition in the non swimming area is complex. There are often reef, water grass, silt and swirling flow. If you are a little careless, you may have an accident. Therefore, it is necessary to do a good job of investigation and research in the local area before launching, so as to be aware of it, and try to keep away from the water grass, reef, swirl and mud as far as possible.

Do not drink alcohol before swimming, and hypoglycemia will occur when a large amount of glucose stored in the body is consumed after drinking. In addition, alcohol can inhibit the normal physiological function of the liver, hinder the transformation and storage of glucose in the body, thus causing accidents. At the same time, alcohol will affect the judgment ability of brain, and increase the chance of swimming accident.

After landing, it is necessary to prevent exposure to the sun and protect the skin. In order to avoid strong sun exposure, it is better to apply sunscreen. Before bathing in the sea, you need to be prepared on the shore, and then soak your skin in shallow water to make your body warm. When bathing in the sea, please don't climb the reef to avoid being scratched by oysters.

Don't swim immediately before and after meals. Swimming on an empty stomach will affect appetite and digestive function. It will also cause dizziness and fatigue during swimming. Swimming on a full stomach will also affect digestive function. It will also cause stomach spasm, even vomiting and abdominal pain.

Don't swim immediately after strenuous exercise, or it will aggravate the burden on the heart; the sharp drop of body temperature will weaken the resistance, cause cold, pharyngitis, etc.

Menstrual women do not swim, menstrual period swimming, bacteria easy to enter the uterus, fallopian tubes and other places, causing infection, resulting in irregular menstruation, excessive menstruation, menstrual extension.

Do not long time exposure swimming, long time exposure will produce sunburn, or cause acute dermatitis, also known as sunburn. In order to prevent sunburn, it is better to use an umbrella to shade the sun after landing, or to rest in a shady place, or to protect the skin with a bath towel, or to apply sunscreen to the naked part of the body.

Don't eat immediately after swimming. You should rest for a while before eating. Otherwise, it will suddenly increase the burden on the gastrointestinal tract, which is easy to cause gastrointestinal diseases for a long time.

Don't swim too long, the skin has three reaction periods to cold stimulation. The first stage: after entering the water, the skin vessels contract due to cold stimulation, and the skin color is pale. The second stage: after staying in water for a certain period of time, the blood flow on the body surface expands, the skin changes from pale to light red, and the body changes from cold to warm. The third stage: stay too long, the body temperature is more than the heat, the skin appears goosebumps and chills. This is the taboo period of summer tour. You should get out of the water in time. Generally, the duration of swimming should not exceed 1.5-2 hours.

Patients with hypertension should not swim, especially stubborn hypertension. It is difficult to control drugs. Swimming has the potential risk of inducing stroke, which should be absolutely avoided.

Patients with heart disease should not swim, such as congenital heart disease, severe coronary heart disease, rheumatic valve disease, more serious arrhythmia and other patients, so they should "stay away" from swimming.

Patients with otitis media do not swim, whether chronic or acute otitis media, because the water into the inflammatory middle ear, is equal to 'make worse', make the disease worse, and even make intracranial infection.

People with acute conjunctivitis should not swim. The speed and scope of infection of the virus, especially in swimming pools, are astonishing. Even healthy people should avoid swimming in the swimming pool during the epidemic season.

Some skin disease patients do not swim, such as various types of ringworm, allergic skin diseases, not only induce urticaria, contact dermatitis, but also easily aggravate the condition.

After swimming, you should pay attention to the hygiene. After swimming, you should immediately wipe off the scale on your body with a soft dry towel. You'd better wash it with fresh water, drip chloromycete or boric acid eyedrops, and blow out the nasal secretion. If there is water in the ear, you can use the "same side jump" to drain the water. After that, do some relaxation gymnastics and body massage or take a rest under the sun for 15-20 minutes to avoid muscle rigidity and fatigue.