Not suitable for sitting

As the saying goes: "Winter does not sit stone, summer does not sit wood." Summer high temperatures, high humidity, wood, especially for a long time in the open wood, chairs, etc., dew rain, moisture content more, the sun a sun As the temperature rises, it will give off heat and cause people to suffer from skin diseases, rheumatism, and arthritis.

Should not eat cold food

In the hot summer, if the gastrointestinal tract is stimulated by a large number of cold foods, it will accelerate the peristalsis, shorten the food's residence time in the small intestine, and affect the body's absorption of food nutrition. At the same time, due to the high summer temperatures, the body's heat is not easy to disperse, and the temperature in the gastrointestinal tract is also high. If it is suddenly stimulated by cold, it can cause gastrointestinal spasm and cause abdominal pain.

Should not sleep at night

In the midsummer, the sweat glands on the body continue to secrete sweat to release heat from the body. After sleeping, the body is in a relaxed state and the resistance temporarily drops. At this time, if it is at night, the temperature drops, and then the cold wind hits, and the dew increases. It can easily lead to headache, abdominal pain, joint discomfort, and indigestion and diarrhea. Night sleep is also easy to be bitten by mosquitoes, and may be contagious, such as brain inflammation.

Inadequate lack of siesta

Summer nights are long and short, high temperatures, people's metabolism is strong, consumption is also large, easy to fatigue. Coupled with nighttime heat, sleep is not stable, resulting in insufficient sleep. Therefore, sleeping for one or two hours at noon is a great benefit to health. It is also a good measure to prevent heat stroke by allowing the various systems of the body to rest.

The fan should not be blown too long

If the fan is blown for too long, it will destroy the equilibrium state of sweating, causing people to feel headache, dizziness, weak leg, general discomfort, and severe cases may also induce other diseases. On a summer night with a fan sleeping, it is easier to catch cold. Especially elderly people and children should pay more attention.

Air conditioning should not be too big

Air conditioning can bring a comfortable environment. However, if the temperature difference between indoor and outdoor is too large, it is difficult for people to adapt to indoor and outdoor temperature changes and it is easy to "cold." And if the indoor and outdoor temperature difference is too large, do not pay attention to indoor ventilation, indoor air will be turbid, resulting in a variety of pathogenic microorganisms breed. If the body's resistance is reduced, it is easy to get sick. Therefore, it is not easy to use air-conditioning temperature difference in summer, and it is better to be between 5-8 degrees. The maximum can not exceed 10 degrees.

Not "fast cooling"

In summer, people go back to get rid of heat as soon as possible to eliminate sweat, and they often like to “quickly cool” with a cold bath. However, because people absorb a lot of heat in the sun, so "rapidly cools", so that the body's pores quickly close, so that the heat can not be released and retained in the body, causing high fever, but also due to rapid contraction of the brain capillaries caused by insufficient blood supply, Dizzy, heavy can also cause shock; and when the body's resistance is reduced, the cold will "cold into." Therefore, the best way is to dry your body's sweat or dry it before it sweats.

Thirsty should not drink too much

Summer sweats more, some people suddenly drink a lot of water, will increase the burden on the heart, so that the blood concentration decreased, and even may appear flustered, shortness of breath, sweating and so on. When you are thirsty, you should drink a small amount of water and stop for a while to drink again.

Should not use beverage instead of boiled water

Drinks such as soda, juice, and cola contain more saccharin and electrolytes. These substances can cause bad stimulation to the stomach, affect digestion and appetite, such as drinking in large quantities, it will also increase the burden of kidney filtration, and affect the renal function. And excessive intake of sugar will increase body heat and make people fat. Therefore, the summer should not drink more drinks, it is best to drink boiled water, especially children and the elderly, should drink less drink more water.

Do not wear dark or shallow sunglasses

Sunglasses can prevent ultraviolet rays from damaging the eye. However, if the lens is too dark, it will affect vision due to unclear vision; if the lens is too light, ultraviolet rays can still damage the eyes through the lens. Therefore, the summer selection of sunglasses should allow visible light between 15% and 30% to pass through the gray or green lens, not only against ultraviolet light, but also the best visual clarity, with minimal change in the color of perspective objects.

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