Don't take a nap for more than an hour. If you sleep too long at noon, the resistance of the central nervous system of the brain will deepen, the capillaries of brain cells will be closed for too long, the metabolic process in the body will gradually slow down, and you will be more sleepy after waking up.
2. It is not advisable to wear sunglasses that are too deep or too shallow.
In hot summer, people always forget to wear a pair of sunglasses they like when they go out to protect their eyes. As everyone knows, wearing this kind of sunglasses, the color of the lens is too dark, which will affect the vision because of unclear vision; The color of the lens is too light, and ultraviolet rays will still hurt the eyes through the lens.
Experts suggest that the criteria for choosing sunglasses in summer are: lenses should be able to penetrate 15% ~ 30% of visible light, with gray and green as the best; In this way, you can not only resist ultraviolet rays, but also have the best clarity and the smallest color change when looking at external objects. This can effectively protect your eyes in summer.
3, unfavorable lie masonry floor.
In summer, some people like to sleep on the floor tiles or terrazzo floor to enjoy the cool. Masonry floor is cold and damp, with strong air permeability and moisture accumulation, which is easy to make people suffer from cold wave, reduce the immune function of joints and muscle tissues, and hinder the transportation of blood and lymphatic circulation, thus inducing rheumatic diseases such as arthritis and sciatica.
For this reason, you must not covet the cool masonry floor.
4. It is not advisable to sleep outdoors.
After a person falls asleep, the whole body is in a relaxed state, and the resistance will drop. Sleeping outdoors, when the cold wind strikes again, the body will replenish dew, which will easily lead to headache, abdominal pain, joint discomfort, indigestion and diarrhea. It is not advisable to sit on a log. Wood, especially wood, chairs and stools placed in the open air for a long time, looks very dry on the surface, but when exposed to the sun, it will emit hot moisture. If sedentary, it will induce hemorrhoids, skin diseases, rheumatism and arthritis.
5, the diet should not be too single.
In summer, the human body not only needs to consume a lot of liquid, but also consumes various nutrients in the body. Therefore, in addition to supplementing water, we should also eat some foods with high protein content to supplement human body loss.
6, unfavorable "rapid cooling"
In hot summer, people often like to take a cold bath in order to sweat and dissipate heat as soon as possible. Such "quick cooling" will make the pores of the whole body close quickly, and the body heat cannot be distributed and stays in the body, causing high fever. It will also cause insufficient blood supply due to rapid contraction of cerebral capillaries, which will make people dizzy and even cause shock. In addition, fast cold drinks are easy to hurt the spleen and stomach, and may also induce respiratory diseases.
8, unfavorable "shirtless"
Many people mistakenly think that the smaller the coverage area of clothes in summer, the faster the body will dissipate heat, so it will feel cooler. Research shows that only when the skin temperature is higher than the ambient temperature can bare skin increase skin radiation and conduct heat dissipation; In hot summer, the temperature is generally close to or higher than 37℃, so the skin can't dissipate heat, but absorbs heat from the external environment, so it will feel hotter if you go shirtless.
9. Beer should not be used as a cold drink.
There is no denying that drinking beer in summer can relieve the heat. On a hot day, when beer (especially cold beer) is drunk into your mouth, it does have a cool feeling.
10, morning exercise should not be too early.
Because of the hot weather in summer, many people think that the earlier the morning exercise, the better. Summer heat makes the human spleen and stomach cold, and it is easy to damage people's yang by enjoying the cold and drinking it. How to raise yang in summer?
Don't be greedy for cold. The most important advice for everyone to keep healthy in summer is to blow less air conditioners and stay away from cold drinks. Conforming to nature, the human body just accepts the sun be the spirit in summer. When the skin is open, blowing on the electric fan for a long time or staying in an air-conditioned room for a long time will make the cold go straight into the body, making people feel dizzy, weak limbs and sleepy, which is more likely to lead to diseases such as colds, and in severe cases, many root causes will fall. Eat less cold drinks to avoid hurting the spleen and stomach.
Adjust the spirit, maintain a happy and stable mood, and avoid great sadness and joy, so as not to add fuel to the fire with heat. Calm down and cool yourself can achieve the purpose of nourishing yang. You can do more quiet cultural and sports activities, such as painting, fishing, calligraphy, chess, Tai Chi, planting flowers and so on.
I often knock my teeth. Wake up in the morning, lie in bed, abandon distractions, close your lips, collect your mind, and then let your upper and lower teeth beat each other rhythmically for 36 times. Then use your tongue to stir the upper and lower gums and tooth surfaces in your mouth. The force should be gentle and natural, first up and then down, first inside and then outside, and stir for 36 times. When you feel body fluids (saliva) produced, don't swallow them. When saliva gradually increases, put your tongue on the palate to gather saliva, and finally swallow it slowly in three times. This method can tonify kidney and strengthen teeth.
Taking a nap in the middle of the afternoon, the human body loses a lot of heat. By taking a nap, you can avoid the peak of heatstroke and supplement the lack of sleep at night. Lunch break 15 ~ 30 minutes is the most appropriate, and we should keep in mind the principle of "keeping your mind open during the day and keeping your back cold at night".
Pay attention to diet regulation, don't eat after extreme hunger, and don't overeat; Diet should be light; Avoid drinking after extreme thirst and drink too much. Although it is hot in summer, it is recommended that you always drink hot water. Eat fruits and cold drinks carefully, so as not to hurt the spleen and stomach yang. Friends who often feel cold hands and feet and easy to have diarrhea suggest eating less watermelon. Watermelon is cool, so eating more is not good for your health.