The dangers of regular sex include physical fatigue, inflammation of the reproductive organs, and diminished sperm quality in men. The significance of sex lies in reproduction and can also enhance the tacit understanding with the partner. Moderate sex can enhance physical fitness, it should be noted that some young people are energetic sex more frequently is normal, but excessive sex will cause both sides of the body burden, and will bring disease. The hazards are as follows: 1. will cause excessive friction between the genital organs of both men and women, resulting in mucous membrane damage caused by inflammation, such as urethritis, vaginitis. 2. It will cause the quality of sleep to deteriorate, thus making both sides of the body overdrawn, resulting in physical fatigue and weakness, low immunity. 3. It can cause a decline in the quality of the man’s sperm such as weakened sperm vitality and sperm count, which can lead to infertility. In addition, it can also induce diseases such as prostatitis. Warm tips: moderate sex life, enhance the relationship between husband and wife, relieve pressure, but to avoid indulgence.