Winter, due to lower temperatures lead to vasoconstriction, increased cardiac load, greatly increasing the risk of sudden death, a year, the probability of sudden death in winter is much higher than the other three seasons, accounting for more than 50% of the year, so the prevention of sudden death has become a growing concern. Here I will explain to you how to prevent sudden death. 1, avoid emotional fluctuations and mental burden, many people in the workplace due to work pressure, nerves are often in a tight state, in fact, the spirit is not relaxed on the body is particularly unfavorable, to maintain a relaxed and happy mood, things should be treated calmly, calmly, do not be too hasty. Because mental stimulation is easy to make the blood catecholamine levels rise, causing platelet aggregation, thus blocking blood vessels, sudden death. 2, actively participate in physical exercise, to prevent fat storage, a winter, people tend to prefer to stay in the warm indoors, not willing to participate in outdoor activities, in fact, this is not good for the heart, because exercise can prevent fat storage, improve myocardial function, enhance the heart’s ability to adapt to a variety of stimulating factors. However, it should be noted that the winter out of the exercise must pay attention to keep warm. 3, sick timely consultation, when the symptoms of chest tightness and chest pain, always think that “stay up” on the good, do not know, this idea will lead to aggravation of the condition, so we must promptly consult the doctor, even if it is a minor symptom do not let go. Especially for angina pectoris suddenly intensified or arrhythmia, rapid heartbeat patients, must go to the hospital, or call 120 for help. 4, diet should be regular, reasonable diet is very important, daily life, vegetables and fruits can not be less, high fat food to eat less, but also pay attention to maintain a low salt intake, quit smoking, less alcohol, do not overdose, overeating on sudden death also has a certain threat.