The temperature warms up in spring, but it is still relatively cold in the morning and evening, with a significant temperature difference between day and night. Many places may also experience a "late spring cold", which can easily overwhelm blood vessels and increase the risk of cardiovascular events. As the saying goes, 'spring covers and autumn freezes, no miscellaneous diseases arise.' Medical research has pointed out that spring, especially from March to May, is a high-risk period for diseases such as hypertension, coronary heart disease, and myocardial infarction. Why do I suggest you "spring cover"? In low temperature environments, the human body reduces heat loss by contracting peripheral blood vessels, leading to increased blood pressure and increased cardiac load; Cold can also cause the rupture of atherosclerotic plaque, leading to thrombosis. Wang Zuoyan, chief physician of the Department of Cardiovascular Medicine at Beijing Jishuitan Hospital affiliated with Capital Medical University, said that the fluctuation of temperature in spring is a normal phenomenon, but it may activate the sympathetic nervous system of the human body, leading to vascular spasm, severe blood pressure fluctuations, and an increased risk of angina pectoris, acute myocardial infarction, and stroke. In addition, respiratory infections are more common in spring, and once cardiovascular disease patients become ill, they can experience inflammatory reactions, increase the burden on the heart, and induce heart failure. Clinical observation shows that patients with hypertension or diabetes, the elderly, people with a history of coronary heart disease or stroke, affected by the decline of vascular elasticity and basic diseases, have poor tolerance to temperature changes, and more attention should be paid to "spring cover". It is best for patients with cardiovascular diseases to "hold on" until around Qingming Festival. Wang Zuoyan suggests that "spring holding" should continue until the temperature stabilizes above 15 ℃ and the temperature difference between day and night is less than 8 ℃. That is to say, it is best to keep an eye on the temperature until around Qingming Festival, especially for patients with cardiovascular diseases. Spring cover "does not mean blindly wearing more clothes, but emphasizes not to suddenly reduce clothing during seasonal changes, gradually adjusting according to the temperature to ensure that the body has enough time to regulate its own temperature regulation mechanism. Taking off winter clothes too early and catching a cold may affect the body's own regulatory mechanisms, thereby affecting resistance. It should be noted that Chun Wu should focus on protecting the neck, head, abdomen and lower limbs: patients with lower limb circulation disorders need to wear thick socks or knee pads, for example, patients with diabetes have poor lower limb circulation, and ignoring foot warmth may aggravate peripheral neuropathy. Head heat dissipation accounts for 30% of the whole body, wearing a thin hat can reduce heat loss. Keeping the abdomen warm helps maintain stable visceral blood flow and effectively protects the stomach, spleen, and intestines. Cold in the neck can easily trigger carotid artery spasm, for example, in patients with carotid artery stenosis, cold in the neck may induce cerebral ischemia due to vascular spasm. 03 Clothing Guide for Different Temperatures and Scenarios "Spring Covering" is mainly suitable for feeling warm and not sweating. The most practical way to dress in early spring is the "onion style" layered outfit: inner layer: choose soft, breathable, sweat absorbing cotton or thermal underwear or autumn clothes. Middle level: Wear sweaters, hoodies, and other clothing. Outer layer: Choose a lightweight jacket, windbreaker, or vest. This combination can not only withstand the cool breeze of early spring, but also facilitate the adjustment of temperature at any time. In addition, you can also follow the "three-layer dressing rule", which includes the inner layer sweating, the middle layer keeping warm, and the outer layer windproof. In addition, clothing can be adjusted based on factors such as temperature, humidity, wind speed, personal physique, and activity level. The following clothing suggestions for different temperatures are for reference: below 5 ℃, strengthen insulation, such as cotton jackets, down jackets, and wear warm underwear, autumn clothes, pants, sweaters or knitwear underneath. It is best to have clothes that are easy to put on and take off to prevent excessive temperature differences when switching between indoor and outdoor environments. You can wear autumn clothes, pants, sweaters, and cotton sweaters at 5 ℃~15 ℃, and pair them with windbreakers or jackets. When the temperature is low in the morning and evening, you can add thicker vests or thin down vests or light down jackets. When going out during high temperatures and ample sunshine at noon, you can reduce to wearing long sleeved T-shirts and thin jackets. You can choose jeans or casual pants for your pants. Short sleeved or long sleeved T-shirt at 15 ° C~20 ° C, paired with thin cardigans, hoodies, or single layered shirts, and can be worn as underwear or skirts. In spring, there is a large temperature difference between morning and evening, so it is best to prepare a thin coat, such as a knitted cardigan, windbreaker, thin cotton coat, or vest. Wear summer clothing such as short sleeves, skirts, shorts, etc. when the temperature is above 20 ℃, and pay attention to sun protection when there is sufficient sunlight. You can also pair it with thin sun protection clothes or cover up shirts appropriately. In hot and humid weather, try to choose clothes made of moisture wicking materials as they are more breathable and comfortable. (New Society)