In addition to the increase in the number of patients with upper respiratory tract infections, the number of patients with cardiovascular diseases is also increasing in hospitals after the winter. Every year in the winter deaths, because of cardiovascular and cerebrovascular diseases caused by the number of deaths accounted for 2/3 of the total number of deaths, so cardiovascular disease patients should be how to safely over the winter? Why cardiovascular disease “favor” winter 1, the human body’s oxygen consumption increases in winter because of the increase in oxygen consumption, easy to increase myocardial ischemia, the incidence of infarction, increase the heart load. December to March each year, is the high incidence of cardiovascular disease, especially angina pectoris, myocardial infarction, high incidence of stroke. 2, cold Cold easily stimulate the body’s blood vessel contraction, as well as reduced sweating, blood pressure is prone to rise, especially in the case of sudden cooling or cold and hot, the body’s blood vessel contraction, sympathetic nerve excitation, accelerated blood flow, resulting in a spike in blood pressure or thrombosis. Cardiovascular patients in winter to be alert to a few alarm signals 1, sudden pain, such as chest pain, shoulder pain, stomach pain, etc., may be ignored or confused as frozen shoulder, stomach problems. In fact, this may also be the precursor of heart attack. Cardiovascular patients occur below the chin, sudden pain above the navel to be alert to heart problems. 2, difficulty in whistling In winter, heart disease, whistle disease, may cause difficulty in whistling, shortness of breath, asthma, breath holding. Especially the phenomenon of holding awake, only sit up to whistle, may be heart failure. Early medical attention is needed to check cardiopulmonary function. Feeling an irregular heartbeat, such as palpitations and rapid heartbeat, is a sign of arrhythmia, and if the episodes are frequent, you need to seek immediate medical attention. Winter diet can choose more than a few kinds of food 1, potato food such as sweet potatoes, potatoes, etc., in a broad sense, potatoes also belong to the coarse grains, rich in a large number of dietary fiber, can regulate blood lipids, regulate blood glucose, as well as laxative, purify the blood. Often eaten in winter, cardiovascular disease patients are very beneficial, but need to avoid eating too much at once. 2, green vegetables Green vegetables are rich in vitamin C, vitamin A, folic acid, etc., can improve the toughness of blood vessels, improve resistance, while folic acid has been proved to have a hypotensive, reduce the role of stroke. In addition to green vegetables, coarse grains also contain folic acid.