Why? There are three main reasons.
First of all, the heart rate and blood flow velocity will increase with the increase of temperature, and the oxygen content of myocardium will also increase;
Secondly, in hot weather, in order to dissipate heat, the blood vessels on the body surface will expand, more blood will circulate to the body surface, and the blood supply to the heart will be relatively less;
Then the weather is hot, the burden on the heart increases and sweating increases. Dehydration will lead to the increase of blood viscosity, easy to form thrombus and induce myocardial infarction.
(1) Don't look back suddenly.
Clinical data show that carotid artery stenosis and plaque are important causes of cardiovascular and cerebrovascular diseases.
If the unstable plaque in carotid artery is suddenly "stimulated" to fall off, it will immediately bring great harm to cardiovascular and cerebrovascular diseases, which may lead to myocardial infarction, cerebral infarction and even life-threatening.
Especially in summer, the human body is prone to insufficient blood volume and high blood viscosity. Patients with cardiovascular and cerebrovascular diseases had better not make a "sharp turn" in their lives;
At the same time, avoid all actions that require sudden exertion, such as getting up suddenly, playing badminton and basketball. , to avoid accidents.
(2) Don't do morning exercises too early.
Many old people have the habit of doing morning exercises, but in summer, they get up early, get up early, and do morning exercises early.
In fact, 4- 10 every morning is called "devil's time" for cardiovascular and cerebrovascular diseases, because 70%-80% of sudden death of cardiovascular and cerebrovascular diseases occur during this time.
Therefore, people with a history of cardiovascular and cerebrovascular diseases are advised to avoid the morning hours as much as possible. They can choose to exercise in the cool night, and the intensity of exercise should be moderate. They can choose relaxing aerobic exercise such as walking and Tai Ji Chuan.
In addition, in hot weather, it is also necessary to reduce unnecessary going out, and do a good job of sun protection when going out, such as sun hats and breathable clothes.
(3) the air conditioning temperature should be appropriate
Temperature change is the "enemy" of cardiovascular and cerebrovascular diseases, especially the sudden change of temperature difference, or the alternation of cold and heat, blood vessels can contract or expand sharply, causing blood circulation disorder and inducing myocardial infarction or cerebral infarction.
Therefore, the air conditioning temperature should not be adjusted too low, and it is appropriate to have a temperature difference of 8 degrees Celsius from the outdoor. The use time should not be too long. Open the window for ventilation every few hours to increase indoor fresh air.
(4) Have a light diet and drink plenty of water
When the weather is hot, people's digestive function will be weakened and their appetite will also decrease. Patients with cardiovascular and cerebrovascular diseases should have a light diet in summer and avoid eating too greasy and salty meals, which will increase blood lipid and blood pressure;
Eat more fresh fruits and vegetables rich in vitamins, and appropriately increase the intake of lean meat and fish to ensure protein.
At the same time, it is necessary to ensure adequate water intake, drink a small amount of water many times, and drink water regularly when you are not thirsty, so as to avoid blood being too viscous and inducing thrombosis. Drink warm water and avoid cold food.
(5) Adhere to regular medication.
The weather is hot, and blood sugar and blood pressure fluctuate easily, which is difficult to control. Patients with cardiovascular and cerebrovascular diseases should not stop taking drugs without authorization. They should insist on taking medicine and monitor their blood pressure and blood sugar levels at any time. If you feel unwell, such as chest tightness, chest pain, palpitation, fatigue, etc., you should seek medical advice promptly.
(6) Maintain emotional stability
The hot weather in summer is easy to make people feel irritable. Emotional fluctuation and excessive excitement will lead to vasoconstriction, high blood pressure, increase the burden on the heart and induce arrhythmia.
Therefore, patients with cardiovascular and cerebrovascular diseases should pay attention to keep a calm mind and work regularly in summer to avoid overwork and great grief and anger.
# Summer health is just the right time #