Normal or abnormal sexual function is a weathervane for the physical health of middle-aged and elderly men. Many diseases such as diabetes, hyperlipidemia, and hypertensive disorders are often preceded by a decline in sexual function before the clinical symptoms of these major diseases appear. Sexual dysfunction is the first to appear, for men’s health status alarm. For middle-aged and elderly men, a big belly is definitely not a “rich” performance, many may be suffering from metabolic syndrome. Many studies at home and abroad have confirmed that people with erectile dysfunction are more likely to suffer from metabolic syndrome. Therefore, middle-aged and elderly men with poor sexual function must be alert to metabolic syndrome. So, what kind of disease is metabolic syndrome? Meet three of the following four conditions, can be characterized as metabolic syndrome, namely abdominal obesity, high cholesterol, high blood sugar and high blood pressure. Metabolic syndrome is a complex disease syndrome that is caused by obesity, elevated blood sugar, elevated blood pressure, and lipid metabolism disorders. The main hazards are: First, metabolic syndrome is the preview signal of diabetes, metabolic syndrome can cause insulin resistance, leading to type 2 diabetes; nearly 50% of diabetic patients are developed by metabolic syndrome. Secondly, metabolic syndrome is the warning signal of coronary heart disease, 1/4 of metabolic syndrome patients will newly occur coronary heart disease. Third, metabolic syndrome will aggravate coronary heart disease and other atherosclerosis. As a result of lipid metabolism disorders, triglycerides, LDL rise and HDL fall, which will seriously accelerate the disease process of atherosclerosis. Since metabolic syndrome is often the result of the coexistence of four risk factors, these risk factors can superimpose and synergize to exacerbate the likelihood of serious diseases and increase the morbidity and mortality of coronary heart disease, myocardial infarction, and cerebrovascular accidents. There are also studies confirming that metabolic syndrome will increase the death rate of gastrointestinal nausea tumors, so some scholars will be these four risk factors into the “death quartet”. They pose a great threat to health and life. The main causative factors of metabolic syndrome are abdominal obesity and insulin resistance, and its pathogenesis is generally believed to be related to genetic, environmental and lifestyle factors, and is the result of the interaction of multiple factors. So, how to deal with metabolic syndrome? To prevent metabolic syndrome, it is necessary to make adjustments in the following aspects: First, adjust the dietary structure, balanced intake of protein, fat, carbohydrates, control salt intake to avoid over-salting, moderate consumption of vegetables, fruits, dairy products, etc. Second, moderate exercise is very important. Second, moderate exercise is very important, such as walking, jogging, swimming, tai chi, etc., sedentary and lack of exercise is harmful to health, long-term moderate exercise is very beneficial. Third, to develop good living habits, is conducive to the prevention of metabolic syndrome. Smoking, alcoholism, irregular work and rest, especially late at night, is the daily life of a variety of disease triggers. Therefore, the key to preventing metabolic syndrome is to control alcohol, quit smoking and have a regular work and rest schedule. Fourth, maintain a good attitude. Healthy mentality, positive, not jealous, relaxed, this is the “Yellow Emperor’s Classic of Internal Medicine,” the so-called “calmness and emptiness, the real gas from the”, is conducive to the prevention of metabolic syndrome. In addition, middle-aged and elderly people moderate sex life, can soothe the mood, is conducive to physical and mental health, for the prevention of metabolic syndrome is also very important. Middle-aged and elderly men can take 1-3 grams of Cordyceps sinensis seeds and entities every day, brewed with boiling water, and drink it throughout the day instead of tea. Cordyceps subunit is a substitute for natural cordyceps, rich in cordyceps acid and adenosine, which can resist tissue fibrosis, anti-lipid peroxidation, smooth blood sugar, improve microcirculation, enhance immune function, and make the liver’s detoxification enhanced. It can also prevent cerebrovascular disease and myocardial infarction, as well as regulate the secretion of adrenaline and sex hormone, and play a role in strengthening sexual function.