Studies have shown that with the increase of temperature, human blood vessels will expand. When the temperature reaches above 35 degrees, the range of this expansion has been exaggerated. The dilated blood vessels will reduce the blood supply to the heart, and more blood will be transported to the body surface with the blood vessels. In addition, the increase in temperature will also lead to an increase in myocardial oxygen consumption and a faster heartbeat, so sensitive people will feel hypoxia, and some people will experience shortness of breath.
Therefore, protection should be done in summer, especially for patients with cardiovascular and cerebrovascular diseases. If they are disturbed by the temperature, they are more likely to have problems, so such people should pay attention to the temperature changes. So, what can we do in summer?
1. Slow motion, slow force
The slow motion here is not to make everyone move like an old machine for a long time, but to slow down a little on the basis of daily behavior. There should be no sharp turn and high bounce in life. For patients with cardiovascular and cerebrovascular diseases, such actions will stimulate the lack of blood volume and high blood viscosity. If the patient has carotid artery stenosis and plaque, such action will induce arterial plaque to fall off, leading to myocardial infarction and cerebral infarction. Friends with unstable blood pressure may also be abnormal because of the sudden increase or decrease of blood pressure in the body.
2. Go in and out of the air-conditioned room slowly.
Many people turn on the air conditioner indoors to enjoy the cool, because they can't stand the hot temperature. However, turning on the air conditioner is also learned. First, the temperature of the air conditioner should not be too different from the outdoor temperature. If you don't know the difference, just stay naked when you turn on the air conditioner. Many people keep the habit of covering the quilt with air conditioner on, which may be romantic to healthy people, but it may be a sickle for friends with cardiovascular and cerebrovascular diseases.
When people go in and out of air-conditioned rooms, due to the excessive temperature difference between indoor and outdoor, it is easy to cause sudden contraction or expansion of blood vessels and induce myocardial infarction or cerebral infarction. When going in and out of places where the temperature difference is too large, you can keep a relatively slow speed at the door and let your body gradually adapt to the temperature.
3. Exercise should be timely.
Many people have the habit of doing morning exercises, but research shows that 4~ 10 is the peak of cardiovascular and cerebrovascular diseases, accounting for about 70% ~ 80% of all cardiovascular and cerebrovascular diseases, which is terrible. Most people have the highest blood pressure at 9: 10 in the morning, and then gradually decrease. At night, the blood pressure drops to the lowest point, and the difference can reach 40mmHg, but when they wake up, the blood pressure can rise by about 20mmHg. Blood pressure rises further after getting up, which is most likely to induce sudden death of coronary heart disease. If you exercise immediately, it will further increase the fluctuation value of blood pressure and cause adverse effects on your body.
In addition, from the perspective of air quality, many people think that the morning air is the sweetest and freshest, but it is not. From the point of view of a day, the air in the morning actually contains the most dust particles, which is not a good choice from the point of view of body or air.
Step 4 replenish water in time
Summer is the season when people sweat the most. Many normal people will collapse if they don't replenish water in time after long-term high-intensity work or exercise. As a patient with cardiovascular and cerebrovascular problems, timely hydration is more important. Generally speaking, it is more appropriate to replenish water for 2~3L a day in summer, and it is also a good choice to replenish water at night if conditions permit.
If you can't replenish water in time, it will cause the blood in the human body to become sticky and easily induce stroke and thrombosis, so patients with such risks must pay attention to hydration.
5. Seek medical attention if there is any abnormality.
If you have atrial fibrillation and heatstroke at home, you must not think that it will pass in a short time. You should go to the hospital for treatment in time, especially atrial fibrillation. Under the action of high temperature in summer, it is easy to further deteriorate and cause diseases such as cerebral thrombosis. And heatstroke may turn into heatstroke, and the mortality rate is as high as 20% to 70%, and the mortality rate of people over 50 years old reaches 80%!
6. Diet should be adjusted
In terms of food selection in summer, try to choose light food. Oily and salty foods can lead to an increase in blood pressure and blood lipids, while foods with high sugar can increase blood sugar. Eating spicy food will increase the sweating of some special physique, so everyone's taste should be light. Eating more fruits and vegetables every day is a better way to keep fit.