Mr. Wang belongs to the typical “white collar” (white-collar, backbone, elite). In the past two years, in order to performance all day busy work and social, smoking and drinking, not a lot of overtime stay up late. In the past, the couple’s sex life is very satisfactory, but in the past six months is always unable to raise interest, occasionally for the but always hastily ended. At first can get his wife’s forgiveness, over time, the couple’s relationship is very tense. Now Mr. Wang’s career has, but in sex life is difficult to find the old masculine, “erection” a little difficult. He is ashamed to say, would like to know: I have ED? To answer this question, we must first understand what is ED? ED is an acronym for erectile dysfunction, which refers to the persistent inability of the penis to achieve and maintain an erection sufficient for satisfactory sexual intercourse over the past three months. ED is one of the most common sexual dysfunctions in men, both primary and secondary, as well as organic, psychogenic and mixed. Primary ED manifests itself as the patient’s consistent failure to have a harmonious sex life; secondary ED has ever had a satisfactory sex life. Organic ED is characterized by the inability of the penis to erect during sexual excitement and the absence of signs of spontaneous erection; psychogenic ED is characterized by spontaneous erection, such as erection during sleep and when the bladder is full, but inability to erect during sex or erection is not firm. The understanding of ED has gone through a long process. In Europe, ED was thought to be the result of demonic possession and masturbation, and later was thought to be psychological; while in China, the traditional ethical and moral views advocate sexual repression, promoting the “theory of sexual evil”, people often “talk about sex”. After the 1970s, people realized that psychological factors can indeed cause ED, but also ED is related to many bad habits (smoking, excessive drinking, staying up late), diseases (hypertension, diabetes, cardiovascular disease), drugs, trauma and surgery. The erection mechanism is a complex process involving nerves, blood vessels, endocrine and muscles, and abnormalities in any of these can lead to ED. Therefore, ED is not an independent disease, it is often closely related to many underlying chronic diseases such as diabetes, hypertension, hyperlipidemia and low testosterone levels, and ED may only be the “tip of the iceberg “. Normal erectile function is not only the foundation of a healthy sex life; but erectile function has become a “weather vane” for the health of men, especially middle-aged and older men. The company’s main business is to provide a wide range of products and services to the public. And, ED is not just a ‘lower body’ problem, it is likely to be a precursor to some other potential diseases. Beware, “erection” problem has been for the whole body health “red card”!