Recently approaching the early fall, the temperature is unpredictable, whether people according to the “spring cover autumn freeze” proverb health? High blood pressure, stroke, coronary heart disease patients can “autumn freeze”? We discuss the following: First of all, we answer what is the fall freeze. Autumn freezing, is to improve people’s tolerance to the gradually cold environment, so that the human body slowly adapted to the gradual decline in temperature, for the upcoming winter months to get ready, like a subtle refinement; Autumn freezing is suitable for healthy people. Secondly, we answer the question of how healthy people can master the degree of “autumn freeze”. In general, the early autumn sunshine temperature (daytime) in 15 ℃ -20 ℃, people can properly reduce clothing, appropriate autumn freezing, in order to enhance physical fitness. Late autumn and early winter sunshine temperature (daytime) is lower than 15 ℃, should be based on temperature changes, the appropriate time to increase or decrease clothing, should not be “autumn freeze”, should pay attention to warmth, especially pay attention to the head, hands, feet and other parts of the warmth. “Autumn freeze” is not suitable for everyone. The body is weak; allergic rhinitis, asthma; spleen and stomach cold; original stroke, hypertension, coronary heart disease, diabetes and other chronic diseases are not suitable for “autumn freezing”. The first thing you need to do is to get a good deal of money to pay for the services you need. Head CT showed “cerebral infarction”, fortunately, the treatment was timely, leaving no sequelae. Analysis: the original stroke, hypertension, coronary heart disease patients should not “autumn freeze”, should pay attention to the cold. Because ① low temperature can make the surface of the blood vessel elasticity decreased, peripheral resistance increased, blood pressure increased, triggering hypertension, stroke, coronary heart disease, etc.; ② low-temperature stimulation can make the sympathetic nerve excitation, adrenocorticotropic hormone secretion increased, so that small arterial spasms contraction, increased peripheral resistance, increased blood pressure; ③ cold can make the blood increased fibrinogen content, blood viscosity increased, so that the formation of blood embolism, triggering Cerebral stroke, myocardial infarction. According to the statistics of medical authorities, the stroke occurred in fall and winter accounts for 70% of the annual incidence of the population. We suggest that patients with high blood pressure or patients who have suffered from stroke, do not blindly “autumn freezing” in the early fall season, should pay attention to warmth, especially the head, hands, feet and other parts of the body; patients with high blood pressure should develop a good habit of monitoring blood pressure, especially at the time of seasonal change, blood pressure fluctuations should be promptly communicated with their own doctors to adjust the amount of hypertension medication; stroke and coronary heart disease patients should go to the hospital for a medical examination, and the patient should have a heart attack. Coronary heart disease patients should go to the hospital to do a physical examination, in order to find abnormalities and timely treatment.