Why can't cardiovascular patients stand the cold more than ordinary people?

In cold temperatures, the heartbeat will be accelerated, which will lead to vasoconstriction and high blood pressure, which will lead to an increase in heart load. If the heart can't bear it, it will lead to angina pectoris and myocardial infarction. Relevant data show that if the temperature drops by 10 degrees, the probability of heart disease will increase by 7%.

In winter, with the change of temperature, the hormone secretion in the human body will also change. For example, the temperature difference between indoor and outdoor is relatively large, and blood pressure fluctuation is prone to occur in this process, especially for middle-aged and elderly people, and blood pressure fluctuation will be more obvious. If blood pressure always fluctuates up and down, it will lead to the formation of arteriosclerosis, and even angina pectoris and cerebrovascular disease in severe cases.