For hot and humid weather, it is not only easy to get heatstroke, but also the blood vessels of the human body will expand, sweat a lot and even dehydrate. The oxygen content in the air will also decrease, causing some people to feel chest tightness and shortness of breath. And studies have confirmed that cardiovascular and cerebrovascular accidents are more likely to occur at high temperature nights.
What harm does hot weather bring to cardiovascular system?
1. fidgety, rapid heartbeat.
When the weather is hot, people get irritable easily. At this time, the heartbeat will accelerate, the myocardial oxygen consumption will increase, the blood circulation will accelerate, and the heart will be prone to ischemia.
At this time, many patients will feel chest tightness, shortness of breath and chest pain.
2. Poor sleep leads to unstable blood pressure.
When the temperature rises and the weather is hot, people are prone to sleep disorders and sleep well. Moreover, in summer, the night time is short, the daytime time is long, and it is easy to lack sleep, which will also increase the stress of cardiovascular work and lead to unstable blood pressure.
3. Excessive sweating leads to blood viscosity.
In summer, because of the high temperature and low air pressure, the oxygen content in the air will also drop and sweat more. At this time, the blood will be sticky, the blood circulation will slow down, and the blood flow will be poor, which will easily block the cardiovascular system and cause myocardial ischemia, thus inducing the emergence of myocardial infarction.
4. Alternating cold and heat induces myocardial infarction.
In summer, the outdoor temperature is high and the indoor air conditioner is cold, which also leads to a large temperature difference between indoor and outdoor. Under the alternating hot and cold line, blood vessels will suddenly relax or contract, which is easy to induce myocardial infarction, especially in elderly patients. The risk of sudden death will increase a lot.
How to cool the cardiovascular system in dog days?
1. Pay attention to replenish water.
Because you sweat a lot in summer, you must drink plenty of water, especially after sweating a lot, and replenish water in time to ensure cardiovascular health.
Because when the body is short of water, the blood will become sticky, which will lead to the onset of cardiovascular diseases. However, it should be noted that don't drink ice water in summer, which will also bring stimulation to the stomach, so try to choose warm water or cold water.
2. light diet
Patients with cardiovascular diseases should eat more fresh vegetables, fruits and bean products in their daily diet in summer. In addition, they can often eat lean meat, eggs, milk and fish to ensure the intake of high-quality protein.
Pay attention to food hygiene in summer to avoid diarrhea, lead to electrolyte disorder in the body and induce heart discomfort.
3. Turn on the air conditioner correctly
Recently, the temperature in many places has risen to more than 40 degrees. Some people turn on the air conditioner 24 hours a day, while others object. Neither method is recommended.
When the temperature exceeds 30 degrees, it is recommended to turn on the air conditioner to avoid the onset of cardiovascular diseases. But pay attention to sweating too much or just taking a shower, and don't blow the air conditioner immediately, otherwise you will catch a cold easily. And don't blow directly into the air conditioner.
References:
[1] Chen Maoxun, Mao Jie. Investigation on cardiovascular status of occupational exposure to high temperature-China Journal of Misdiagnosis-2004,004 (004)-631632-* * 2 pages.
[2] Hu Changqi. Cardiovascular patients should avoid "emotional heatstroke" at high temperature, and everyone is healthy-2010000 (013)-26 26-* *1.
[3] Yan, Song Jing. Effect of high temperature on cardiovascular system function of workers, china occupational medicine-2006,033 (002)-149150-* * 2 pages.