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The attack of coronary heart disease is closely related to the cold climate

Experts point out that the onset of coronary heart disease is closely related to the cold climate. In cold weather or winter and spring seasons, the incidence rate of coronary heart disease and myocardial infarction will increase.

January is in the middle of winter, the cold wind is piercing, the temperature is continuously the lowest, and the peak day of disease often appears. Three optimal factors related to coronary heart disease were selected as temperature, daily variation (the difference of daily average temperature between two adjacent days) and average wind speed. Continuous low temperature, rainy and windy weather is easy to occur. In addition, there were significant differences in the annual mean air pressure in different periods. The incidence was higher when the air pressure was low.

At the same time, it can also induce coronary artery spasm, make the lumen continuously occluded, or crush plaque to damage intima, platelet aggregation, thrombosis, make lumen acute blockage, also can lead to acute myocardial infarction. Therefore, in the high incidence season, patients with coronary heart disease should pay attention to keep warm from the cold and reduce outdoor activities to prevent the occurrence of disease.

In cold, humid and windy weather, the incidence rate of coronary heart disease is high because of cold stimulation, especially windward walking, which makes sympathetic nerve excitability, faster heart rate, higher blood pressure, systemic vasoconstriction, increased peripheral resistance and increased myocardial oxygen consumption.