Sex, in ancient times, was known as rooming, rooming together, cloud and rain, etc., while in modern times it is known as sex life, making love, lovemaking, sex, etc.. It is one of the most wonderful human activities and one of the highest expressions of love between lovers. The whole process of sexual affair includes kissing, embracing, caressing, sexual intercourse, etc. Sexual affair is not only limited to sexual intercourse. What should I do for the first time? The first time should be gradual. The first “intimate contact” for men is both mysterious and exciting, more is excited; while for women is both shy and nervous, more is fear. So, in the “first” before, both men and women should be prepared for what? The “first” should pay attention to what problems? 1. Pay attention to external genital hygiene. Before having sex, both men and women should brush their teeth, wash their hair, take a bath, while cleaning the external genitalia, especially the male glans on the coronal groove of the dirt and circumcision, female labia major and minor labial folds in the dirt must be cleaned, and to prepare paper towels and clean towels, it is best to change the underwear in order to avoid the occurrence of vaginitis. 2. In the case of uncertainty to have children should take contraceptive measures, to the male side to wear a condom is preferred. 3. Do not be rough, panic, or overly nervous when having sex for the first time, it should be gradual. The man should restrain his sexual impulses, with gentle caresses to guide the woman to relax. The “first time”, nervousness, fear and anxiety will make the female pubic muscle contraction, the male into the unsmooth, at this time should not be forced into, the male should try to speak some sweet words of love, to give the female more caresses, at the same time you can use lubricants; the female should also try to relax, together with the two sides enough to relax and then try to slowly into the time. The first thing you need to do is to try to get in slowly. If the failure is also a very common thing, do not feel ashamed or panic, not to mention the psychological shadow, most of the failures after 2-5 attempts can be successful. When is the best time to have sex? Generally speaking, it is best to have sex before going to bed. Because people after work, or after dinner, the mood is in a relaxed state. At this time, if one party has the need for sexual desire, you can imply or signal to the other party, in order to stimulate the other party’s lust, such as teasing each other, kissing, etc., but pay attention to the dress, dress, in order to increase the degree of sexual excitement. The more sexual desire, the earlier the orgasm will appear, the easier it will be to obtain sexual satisfaction. At the end of the sexual affair, both parties with emotional and physical satisfaction, it is easy to fall asleep comfortably. It is also good for physical recovery after a night’s rest. How often is it healthier for men and women to have sex? Sexual intercourse will gradually decrease in frequency as we age, to about 1-2 times per week, and then gradually transition to 1 time per week. Newly married couples may have a higher frequency, while the average average strong healthy couple has sex about 1-2 times per week. The objective criterion for measuring the appropriateness of the frequency of sexual intercourse is whether you are refreshed, physically and mentally happy the next morning. If sex the next day or within a few days, the following situations, it means that sex is excessive, should be moderated or appropriate to extend the interval between sex. The common manifestations of excessive sexual affairs are as follows: 1, mental lethargy, listlessness, lack of concentration, easy to feel fatigue at work; 2, generalized weakness, lumbago, weakness of the legs, head and feet, and do not like to move; 3, pale face, eyes, emaciation, emaciation, thinness; 4, panic and shortness of breath, insomnia, sleeplessness, difficulty in falling asleep, and sweating; 5, loss of appetite, and accompanied by a mild sense of nausea. References: [1] 婻 Fang Fang. How often is sex healthier for men and women? [J]. Healthy Life. 2015(5):52-53. [2]Liang Hui,Li Qin. The first time to “make love” to take it easy[J]. [2]Liang Hui,Li Qin. Sexual health from the wedding night[J]. 人人健康.2009(1):47-47. [4]Zhu Fangcheng. How to master the time and frequency of lovemaking[J]. [4] Zhu Fangcheng.