It’s the season of 5 minutes out of the house and 2 hours of sweating.
Netizens always ridicule: in summer, watermelons can only be “continued” by air-conditioning WiFi
Some people are accustomed to picking up ice water for a meal, and they find it very refreshing!
Today I want to remind everyone that there are a few cool things in summer, but they are not recommended because these things are really harmful to health.
One, sweating and blowing under the air conditioner
In hot summer, when the temperature soars to 36~39°C, it is really cruel if you can’t turn on the air conditioner.
But if you’re sweating and “quick-freezing” directly under the air conditioner, that’s a big mistake!
Sudden cold stimulation will cause peripheral vasoconstriction, increase blood pressure, and easily cause blood vessel rupture. In addition, if you stay in a closed and hypoxic environment for a long time, the brain and heart can be in a state of ischemia.
If you want to blow the air conditioner without getting sick, you must pay attention to the following points:
1. Appropriate temperature and humidity
It is recommended that the indoor temperature be between 26°C~28°C and the humidity should be kept between 55%~70%.
2. Regular ventilation
It is recommended to ventilate every 6~8 hours for about 20 minutes each time.
3. Do not blow the air conditioner directly on the human body
Appropriately dress and cover the air-conditioned quilt, so as not to sweat and the body surface temperature is normal; if you sweat, you should wait for the sweat to dissipate before entering the air-conditioned room.
4. Regular cleaning and maintenance of air conditioners
If the air conditioner is used for a long time without cleaning, it will not only consume more power and have poor cooling effect, but also dust, dander and other dirt will adhere to the filter screen, evaporator, fan wheel, etc. , breed dust mites and bacteria.
Two, hot and thirsty, drink tons of water
In summer, you sweat a lot, which makes your mouth dry. I believe that many people have the habit of picking up a water glass and drying them in one breath.
Although thirst is quenched, the heart can’t take it.
If you drink too much water, the water will quickly enter the blood, resulting in an increase in blood volume, which can easily increase the burden on the heart.
It is recommended that everyone drink a small amount of water several times, 50~100 ml each time; it is best to drink boiled water instead of drinking too much cold drinks; when sweating a lot, supplement electrolytes in an appropriate amount.
Third, take a shower right after exercising
In summer, it is easy to sweat. If you run and exercise a little bit, you will sweat more and more. Many people will think: It must be cool to take a bath at this time.
But in practice, this practice is not recommended.
Because during exercise, the heartbeat and blood flow in the body will increase, and a large amount of blood will flow into the heart. Even if the movement stops, it will take some time for the heart rate and blood flow rate to return to a normal steady state. The air flow in the bathroom is poor, and if you take a shower at this time, there may be a lack of oxygen.
You can wipe your sweat with a clean tissue or towel and wait until your breathing and heartbeat return to normal before taking a shower.
Fourth, drink ice/cold water immediately after exercising
Recently, a boy who had just taken the college entrance examination drank an ice drink after exercising, which resulted in a sudden death of a myocardial infarction.
Netizens saw it and exclaimed: It’s a pity for heartache.
In general, the occurrence of myocardial infarction is related to underlying diseases such as coronary heart disease, diabetes, and atherosclerosis.
The relatively cold winter and spring are the high incidence periods for myocardial infarction. But there is another condition that increases the risk of a heart attack: cold stimulation.
Drink a lot of cold/ice drinks immediately after exercise, blood vessels will reflexively contract, blood pressure will suddenly increase, and myocardial oxygen consumption will also increase significantly, resulting in cerebral vasoconstriction or coronary artery spasm.
When stimulated by cold, the blood supply to the heart and brain will be significantly reduced, and the blood supply and demand will be seriously unbalanced. Discomfort symptoms such as pain in the area may cause acute myocardial infarction in severe cases.
In addition, the human body sweats a lot, and a large amount of water evaporates through sweat, resulting in an increase in blood viscosity, which is prone to platelet aggregation and thrombosis, thereby inducing myocardial infarction.
Mama Kangaroo has something to say:
In hot summer, there is a risk of “alternating between hot and cold”. I hope everyone will not be greedy when cooling down~