In the midsummer heat, the sun is like fire, and the hot air blows on the face. Swimming not only exercises the body, but also relieves the heat. Swimming can improve the functions of human respiratory system, cardiovascular system and cerebral cortex.

Note that swimming is not a sport that anyone can participate in. Be sure to have a thorough physical examination before diving. Swimming is best in the morning or evening, and it is not suitable for one hour after meals; Be fully prepared before swimming to avoid cramps and colds.

Step 2 take a walk

The weather in summer is often sultry and humid, and the human body feels sultry, but even if you sweat, you can't reduce your fever, which is easy to get heatstroke. Therefore, we should pay attention to the sultry weather and try to go out as little as possible. Even if we go out, we should not be exposed to the open air for a long time. In order to let the moisture in the body go out, we should try to take a walk and other low-intensity activities when the temperature is slightly lower in the morning and evening.

Step 3 play fitness ball

Fitness ball, also known as Baoding iron ball. This exercise can harmonize qi and blood, relax tendons and activate collaterals, strengthen the internal organs, strengthen the brain and improve intelligence, and is not limited by the venue and climate, so it is suitable for practice in summer. If you can practice fitness ball regularly, it will have a good effect on hemiplegia sequelae, cervical spondylosis, scapulohumeral periarthritis, coronary heart disease, finger dysfunction and other diseases. In addition, due to the frequent friction between the iron ball and the palm skin, static electricity and thermal effect will also play a role in promoting blood circulation and treating diseases in all parts of the body.

4. fishing; catch fish

The reason why fishing can nourish the soul and nature is that fishing is made with the cooperation of the brain, hands and eyes, with the help of quietness, will and movement. It has played a positive role in improving people's vision and sensitive reaction ability. On a hot summer day, whenever you come to a reservoir or pond, under the lush shade of trees, the breeze blows, you can read the luxuriant gas, smell the cicada singing in the sunset, and see the "white floating" jumping in the green waves ... If you find this kind of Shu Yue and tranquility, you will naturally feel cool and often experience this kind of happiness, which is conducive to health and longevity.

Matters needing attention in high temperature exercise in summer

1, wear cotton-padded jacket.

Light-colored clothes can reduce the absorption of heat and make them cooler to wear; Cotton fabric is superior to chemical fiber products in heat absorption and sweat absorption. Therefore, it is best to wear light cotton in summer sportswear. The looser the style, the better the heat dissipation performance, and the lighter the color, the less likely it is to absorb heat.

Step 2 avoid direct sunlight

In summer, ultraviolet and infrared rays are strongest every morning 1 1 to 4 pm. Excessive ultraviolet rays can cause damage to the skin and eyes, causing skin cancer. However, long-term exposure to infrared rays will increase the intracranial temperature, cause meningitis and heat stroke. So try to avoid outdoor sports when the sun is strongest, let alone naked sports.

3, timely and appropriate hydration

Excessive sweating and salt loss during exercise can easily reduce the osmotic pressure of cells, leading to sodium metabolism disorder and cramps. Therefore, it is important to replenish water in time. It is best to replenish water several times, and drink 10 to 15 minutes 150 to 200ml during exercise. But don't drink too sweet drinks, so as not to increase the burden on the stomach.

4. Control the intensity of exercise

In summer, the human body consumes a lot of energy, so the intensity should be controlled during exercise. Especially, the possibility of cardiovascular and cerebrovascular accidents in middle-aged and elderly people is far greater than that in young people. Middle-aged and elderly people should exercise in the high temperature in midsummer to avoid excessive physical exercise. Once you have symptoms of heatstroke, you should immediately sit down in a cool and ventilated place, drink some cold salt and boiled water, breathe fresh air, and apply cold compress to your forehead or armpit. If you still don't get better after treatment, you should go to the hospital immediately.

5. Don't use cold drinks to cool down.

Some people are used to eating cold drinks after exercise. In fact, eating cold drinks when your body temperature is high will hurt your stomach. This is because a large amount of blood rushes to muscles and body surface during exercise, while the digestive system is in a state of relative anemia. Eating a lot of cold drinks at this time will not only lower the temperature of the stomach, but also dilute the gastric juice and damage the physiological function of the stomach. Mild cases can cause acute gastroenteritis such as indigestion, vomiting, diarrhea and abdominal pain. In severe cases, it may also lay a curse for chronic gastritis and gastric ulcer in the future. Warm and light salt water is the best drink after exercise.