It is late autumn and the temperature is dropping, and many diseases are starting to rise. Recently, many patients with angina pectoris and dizziness have been seen in the outpatient clinic, and when asked about their condition, it is related to the change of seasons and cold weather. We would like to advise the elderly to pay attention to the cold and keep warm. I. Why does cold lead to cardiovascular diseases? Cold, according to traditional Chinese medicine, is stagnant, and cold is the main attraction, meaning that cold will cause the body’s functions to be in a state of contraction, and blood vessels are also so cold stimulation will lead to vasoconstriction, vasoconstriction and poor blood flow, especially coronary artery contraction, leading to myocardial ischemia and serious problems. Second, what phenomena can be an early indication of cardiovascular disease? 1, heart disease (1) angina – when you feel tired and weak, the chest feel suffocating serious, breathing, like a large stone in the chest, then you have to beware, you may have angina, if you have nitroglycerin or quick-acting heart pills at home, sublingual can relieve angina. And to immediately rush to the hospital for treatment to avoid the development of the disease. (2) “Stomach pain” – some people feel a vague pain in the upper abdomen, which many people mistake for stomach pain, but sometimes it is a form of angina, and we should also be alert. 2, cerebrovascular disease (1) dizziness – dizziness is a common symptom of cerebral infarction, hypertension disease, etc. If you find yourself dizzy, dizzy, not awake, always want to sleep, it means that your brain is deprived of oxygen, you should go to the hospital for systematic diagnosis and treatment to avoid the brain developing into serious diseases such as cerebral infarction. (2) Headache – Headache is also the main symptom of cerebrovascular disease. Some patients with headache accompanied by nausea and vomiting, vomiting in the form of jets, indicating an increase in intracranial pressure, need to immediately go to the hospital for CT examination to exclude serious diseases such as cerebral hemorrhage. (3) Numbness of the limbs – elderly people, suddenly numb fingers, can not grasp things, speech becomes slurred, do not take for granted that the elderly are old, the legs and feet are not flexible, it is possible that the elderly have a stroke, need to actively diagnose and treat. In short, we should carefully observe these subtle changes in our lives to prevent them before they happen, so that we can safely spend the cold winter, laying a good foundation.