Since sexual liberation, premarital sex has become more and more common, and has even shown a trend of younger age. In fact, early sexual intercourse and too many sexual partners are among the culprits for the trend of younger people developing some diseases in recent years. So, how to have a safe and healthy sex life, in the pleasure and at the same time can avoid the risks arising from sexual intercourse? Healthy sexual behavior, need to have both parties voluntary, moral constraints, no harm, no regret, no adverse reactions to these five conditions: 1, both parties voluntary: means that both parties are in the willing, equal, loving premise, sexual behavior, not subject to other emotions and behavior, such as forced, harassment, aggression and other acts against the will of one party; 2, moral constraints: marriage is a legal form of gender union, and The sexual behavior should follow the constraints of social norms and sexual morality, sexual code of conduct, should abide by sexual morality, not to have sex prematurely before the legal age of marriage, and not to have sex with more than one sexual partner; 3, no harm: not only is not to hurt or not to be hurt by the other body, but also to “fap” when the health, to do a good job of cleaning, not to hurt each other. The whole process of cleaning, not to hurt each other’s dignity personality is also very important; 4, no regrets: some people after the sexual act will produce remorse, fear and other emotions, that they did the wrong thing, and eventually become a mental burden to cause more serious injury. Sex is a kind of instinct, not only in reproduction and reproduction, but also to pleasure the body and mind, maintain emotional ties, is no more normal behavior, no need to have a psychological burden; 5, no adverse reactions: sex itself is beneficial, but unwanted pregnancy, unhygienic sex after the reproductive system infection or disease, incorrect posture caused by vaginal / penile injury, etc., belong to the adverse reactions to sexual behavior, need to follow It is necessary to follow the principles of using condom every time, fully understanding the physical health and psychological state of the partner, gradual and not too hasty, and not to have sex during special periods such as menstruation, etc. in order to relatively avoid. Do the above 5 points, you can pursue a more harmonious sex life, the recommendations are as follows: 1, touch, kiss, hug, discuss and other acts can enhance feelings, relax the body, and in the caress familiar with the partner’s sensitive areas; 2, try different positions can increase the interest of sexual life, experience a new sexual stimulation, but pay attention to avoid injury; 3, adhere to the exercise, adhere to the healthy rest and diet, can effectively If there is no plan to prepare for pregnancy, make sure to do a good job of contraception, and insist on wearing a good condom to prevent sexually transmitted infections. Finally, one more word: sex is not an academic study, no need to follow the book, good contraception, good cleaning, as long as there is no physical discomfort before and after sex, then let everything follow their own hearts, enjoy the happy ~ References: [1] Wang Bing, Heng Yan Lin, Cai Min. The evolution of the history of human sexual civilization[J]. Chinese sex science,2006,15(11):35-37+39. [2]Zhang Hong,Liu Shu,Yang Haiyan. Psychosexual analysis: prevention and correction of unhealthy sexual behavior. [J]. China Sex Science,2006,15(6):42-42. [3]Wu Junqing,Li Yuyan. Safe and healthy sexual behavior[J]. Chinese Journal of Family Planning,2018,26(2):152-153.