“Sex is one of the most primitive creativity of human beings. It is not only a tool for reproduction, but also a symbol of vitality.” -Freud According to the latest survey data, about 45% of men in the world expressed great concern about their sexual ability, and on social media, the discussion and search volume about sexual ability increased by more than 20% every year. In the late-night bar, several men got together to talk about “that aspect” ability; Social media is full of all kinds of “aphrodisiac cheats” and “lasting myths”; Even when dating, people secretly speculate whether the other party is “qualified”. A man’s sexual ability seems to be an invisible yardstick to measure a man’s value. But when we peel off the layers of labels given to it by society, why is sexual ability important? What kind of psychological, physiological and emotional codes are hidden behind it? This article will take you into a misunderstood but real field, and explore the essential significance of men’s sexual ability with scientific attitude and sincere emotion.