The heart, which supplies blood to the entire body, may seem strong, but it is fragile. Recently, the American “Prevention” magazine columnist, the University of Miami cardiologist Arthur Gaston, based on years of clinical experience and a number of international studies, summed up the heart’s most vulnerable 6 times. 1, after overeating. In order to digest food, a large amount of blood is transferred to the stomach and intestines, and the blood supplied to the heart is relatively reduced, thus aggravating myocardial ischemia and increasing the burden on the heart. If you eat too greasy and consume too much fat, it may also lead to increased blood viscosity, promoting thrombosis and triggering myocardial infarction. Qi Wenhang suggests that it is best to eat seven or eight portions of each meal, and control fatty meat, animal offal and other high triglyceride, high cholesterol food. If you often have chest tightness, chest pain, rapid heartbeat and other discomfort after a full meal, you need to promptly go to the hospital to rule out heart problems. 2, when forceful defecation. Forceful defecation requires holding your breath, the abdominal wall muscles and diaphragm will be strongly contracted, so that the abdominal pressure increases, which causes a sudden rise in blood pressure, increased myocardial oxygen consumption, inducing angina, myocardial infarction and serious arrhythmias, which may cause sudden death in serious cases. Qi Wenhang pointed out that even if the stool is dry and difficult to defecate, do not push too hard, if necessary, can be used to cope with the auxiliary methods such as open plug. In order to ensure smooth stool, it is best to eat more fresh fruits and vegetables rich in dietary fiber and coarse grains, but also drink more water, moderate exercise. 3, when strenuous exercise. Appropriate exercise helps physical and mental health, but strenuous exercise will force the heart to full horsepower, each contraction hit several times more blood to the whole body, so it is easy to cause a sudden rise in blood pressure, heart rate too fast, myocardial hypoxia, and even lead to a heart attack. Qi Wenhang said, it is best to carry out brisk walking, jogging and other more moderate aerobic exercise, the elderly and people with a bad heart better not to participate in competitive sports. Exercise heart rate should not exceed the target heart rate (under 40 years old with 180 minus age, over 40 years old with 170 minus age), and exercise time should not be too long, about half an hour is appropriate. If the movement of chest tightness, shortness of breath and other discomfort, should immediately sit down to rest. 4, when stressed, mental tension. Heart health and psychological and mental state are closely linked. The nervous system is disturbed when the work is stressful and tense, which will affect the working state of the heart. For example, when a healthy person is mentally stressed, there will be a red face, rapid heartbeat, increased blood pressure and other phenomena; replaced by people with poor heart function, there may be chest difficulties, sudden heart attacks and other problems. Qi Wenhang pointed out that people should learn to release pressure, and promptly vent their worries, grievances and other undesirable factors. When the mood is tense, natural standing, close your eyes, do deep breathing, help to relax the body and mind. 5, 6:00 a.m. to 12:00 p.m. every day. The Spanish National Cardiovascular Research Center analyzed the data of more than 800 heart attack patients and found that the number of patients at 6:00 a.m. to 12:00 noon was the highest and more serious. A Harvard University study also pointed out that the risk of heart attack in the morning is 40 percent higher than at other times. The reason for this is that when you wake up in the morning, your body secretes stress hormones such as adrenaline, which leads to a rise in blood pressure, and when you haven’t had any water all night, your blood is thicker and more prone to embolism. Qi Wenhang suggested that it is best to move gently and slowly after waking up in the morning, but also timely hydration. Hypertensive patients need to follow medical advice to see if they need to take long-acting antihypertensive drugs before bedtime to better control blood pressure the next morning. 6. Every November to March of the following year. A number of international studies have found that seasonally, winter (usually November to March) is the peak season for heart attacks, and that the risk of heart attacks rises by 7% for every 10°C drop in temperature. The reason for this is that people’s physiological response is slower in winter and they are often in a state of stress, which increases the load on the heart. In addition, the outdoor temperature difference is very large, when you go out, the blood vessels are stimulated by cold air, easy to suddenly contract, resulting in interruption of blood supply or vascular obstruction, causing myocardial infarction or stroke. Qi Wenhang said, when you go out, you should do a good job of keeping warm, focusing on protecting your head, hands and feet. Even when you return to a warm room, you should not rush to take off your clothes and hat to minimize blood pressure fluctuations.