On the afternoon of 3 August
Haikou, Lingao, Dingan issued high temperature orange warning
Shu Yue, Deputy Director of the Cardiac Rehabilitation Clinic at Hainan Chengmei Hospital, reminded that in the persistent hot weather, we should not only pay attention to the risk of heatstroke, pyrexia, dehydration and other diseases, but also be vigilant about the risk of cardiovascular and cerebrovascular diseases.
Some research data show that after the temperature reaches 35°C, the number of patients with cardiovascular and cerebrovascular diseases in the Emergency Department will increase by 17.3% for every 1°C rise in temperature.
Why is there a high incidence of cardiovascular disease in hot weather? Shu Yue explained that the threat of high temperature to the cardiovascular and cerebrovascular mainly reflected in three aspects, first of all, high temperature will cause the body to sweat a lot, resulting in an imbalance of water or electrolytes in the body, the normal operation of the heart blood vessels, cerebral blood vessels function poses a certain threat; secondly, high temperatures will lead to the loss of body fluids, the blood becomes concentrated and viscous, increasing the risk of thrombosis, triggering a heart attack or cerebral infarction; in addition, in order to maintain a normal body temperature in high temperatures, the workload of the heart will increase, and the burden will also be aggravated.
Shu Yue reminded that in the recent persistent hot weather, patients with cardiovascular and cerebrovascular diseases, especially the elderly with underlying medical conditions, patients with a history of previous heart disease as well as underlying medical conditions such as high blood pressure and high blood cholesterol, need to pay more attention and be alert to the risk of cardiovascular and cerebrovascular diseases.
Do these 9 things to get through the summer peacefully
I. Keeping a healthy diet
Intake of high-fat and high-cholesterol foods in summer is overburdening for cardiovascular patients. It is recommended to eat less greasy and spicy foods, more fruits and vegetables rich in vitamins and minerals, and avoid overeating.
Ⅱ. Reducing outings and paying attention to temperature differences
Try to minimize outdoor activities, especially for the elderly. Summer exercise should be scheduled during cooler periods in the morning or evening, and each session should not exceed 30 minutes. Additionally, be mindful that the temperature difference between indoors and outdoors should not be too large, preferably not exceeding 8℃, as this can easily lead to rapid vasoconstriction or vasodilation, causing circulatory disorders and triggering cardiovascular and cerebrovascular accidents. Also, avoid being directly exposed to air currents for long periods.
Ⅲ. Timely hydration
Sweating more in the summer makes you prone to dehydration, so make sure you have adequate daily water intake, no less than 1,500ml per day is recommended, and avoid sugary or caffeinated beverages as these can exacerbate dehydration.
Ⅳ. Not stopping medication blindly
Due to vasodilation caused by high temperatures in summer, some patients with hypertension experience a temporary return of their blood pressure to normal levels. Stopping medication without medical advice at this time can not only cause blood pressure to rise again but also increase the risk of serious consequences such as acute heart failure and cerebral hemorrhage. Patients with severe heart failure may even experience uncontrolled phenomena such as heart failure or sudden death.
V. Ensuring quality of sleep
Insufficient sleep can lead to an increased heart rate and increased cardiac load. It is recommended to maintain a regular schedule, avoid excessive fatigue, avoid consuming strong tea or coffee before bed, limit the use of electronic devices for long periods, ensure 7-8 hours of sleep per day, and take a 30-minute lunch break.
Ⅵ. Controlling blood sugar within a reasonable range
During summer, the days are longer, people sleep less, engage in more activities, and consequently experience increased calorie consumption and higher blood sugar utilization. Coupled with the hot weather, people generally have a decreased appetite, resulting in reduced intake of carbohydrates. This leads to an increased incidence of hypoglycemia and can even trigger arrhythmias, angina, cerebrovascular accidents, and other conditions.
Ⅶ. Monitoring blood pressure
High temperatures can cause blood pressure fluctuations, so it is important to regularly monitor blood pressure and promptly detect any abnormalities.
Ⅷ. Avoiding drinking cold beverages excessively after exercise
After intense exercise, the heart rate increases and capillaries dilate, leading to low blood pressure and insufficient blood supply to the brain. If cold beverages are consumed immediately at this time, it can cause rapid vasoconstriction, increase oxygen consumption in organs such as the heart and brain, lead to blood pressure fluctuations, and in severe cases, can trigger sudden death.
Ⅸ. Regular health check-ups and screenings for cardiovascular and cerebrovascular diseases
It is recommended to have a comprehensive health check-up once a year. During the check-up, do not neglect cardiovascular and cerebrovascular examinations. The check-up should include tests for blood pressure, blood lipids, electrocardiogram (ECG), cranial MRI, etc., to achieve early detection, diagnosis, and treatment.
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Author | Huang Fei