What are the precautions for swimming in summer

Summer can be said to be the best season, because this kind of exercise is relatively cool, but it can also help us achieve the most ideal exercise effect, exercise our body, and lose weight. However, in the process of swimming, everyone must pay attention to the precautions of swimming in summer, because if these principles are violated, other problems will occur.

1. Avoid swimming for too long: the skin generally has three reaction periods to cold stimulation. Phase 1: After entering the water, the skin’s blood vessels contract due to the stimulation of cold, and the skin color becomes pale. Phase 2: After staying in water for a certain period of time, the blood flow on the body surface expands, the skin turns from pale to light red, and the skin turns from cold to warm. The third stage: staying too long, the body temperature dissipates more than the heat generated, and goose bumps and chills appear on the skin. This is a taboo period for summer swimming, and you should get out of the water in time. Swimming should generally not last more than 1.5 to 2 hours.

2. People with a history of epilepsy should avoid swimming: No matter it is a major seizure or a minor seizure, there is a moment of loss of consciousness during the seizure. If it is suddenly triggered during swimming, it is inevitable that "disaster" will occur.

3. Patients with hypertension should avoid swimming: especially those with refractory hypertension, which is difficult to control with medication. Swimming has the potential risk of inducing stroke and should be absolutely avoided.

4. People with heart disease should avoid swimming: Patients with congenital heart disease, severe coronary heart disease, rheumatic valvular disease, more serious arrhythmia, etc. should stay away from swimming.

5. Avoid swimming when suffering from otitis media: No matter it is chronic or acute otitis media, because water enters the inflamed middle ear, it is like "adding insult to injury", making the condition worse, and even causing intracranial infection.

6. Avoid swimming if you have acute conjunctivitis: the virus of this disease spreads at an alarming speed and to a wide range, especially in swimming pools. Even healthy people should avoid swimming in swimming pools during the epidemic season.

7. Avoid swimming when you have certain skin diseases: such as various types of ringworm, allergic skin diseases, etc., which not only induce urticaria and contact dermatitis, but also easily aggravate the condition.

I wonder if you have paid attention to these problems in the summer. For example, as mentioned above, friends with heart disease, high blood pressure or otitis media are not suitable for swimming, because if this condition occurs, it will cause more adverse harm to your health.