A wonderful sex life is desirable, but if the timing is not right, it may be counterproductive and may even endanger your health. For example, when both parties or one party are in a bad physical or emotional state, it may affect the quality of sexual life. What needs special attention is that there are eight black sex times, which must be avoided as much as possible.

First, after drinking. Drinking alcohol, especially drinking a large amount of hard alcohol, can cause the man's penis to become weak or cause premature ejaculation, hindering a harmonious sexual life, and getting pregnant after drinking can endanger the fetus. A survey found that drunken sex is also one of the important causes of sudden death.

The second is the menstrual period. At this time, the cervix is ​​open and it is very easy to get infected during sexual intercourse, leading to inflammation of the uterus or appendages. Studies have also found that during menstrual intercourse, women's menstrual secretions enter the male urethra, which can cause urethral irritation in men. Therefore, avoiding sexual intercourse during menstruation can effectively reduce the chance of reproductive organ infection.

The third is illness. When you are sick, the body's resistance is low and sexual sensitivity is reduced, which affects the quality of sexual life. Especially when you are suffering from infectious diseases, you should not have sex, otherwise you will not only suffer from it, but also pass it on to your loved ones.

The fourth is when you are tired. Sexual life requires a certain amount of physical strength and energy. When you are mentally or physically exhausted, sexual intercourse often fails to reach a climax and cannot achieve satisfactory results for both parties. Especially having sex immediately after exertion will damage your health.

The fifth is when you are unhappy. Some couples reluctantly have sex when one partner is in a bad mood. Not only do they lose the harmony of their sexual life, but they also make the partner who is in a bad mood resentful. If it happens repeatedly, it will lead to sexual frigidity in the woman or impotence in the man.

Sixth is when you are too full or hungry. Because the gastrointestinal tract is full and congested due to full meals, the blood supply to the brain and other organs of the body is relatively insufficient, so it is not suitable to have sex just after eating; when people are hungry, their physical strength decreases and they are not energetic. Sexual life is often difficult to achieve satisfactory results.

Seventh is postpartum. If you have sexual intercourse too early after delivery, it is easy to cause poor uterine involution and uterine bleeding. A survey shows that nearly 40% of women have sex for the first time after giving birth too hastily, which casts a shadow on their future sex life. Generally speaking, sexual life can be gradually resumed after 6-8 weeks postpartum.

Eight is before dawn. If neither party gets adequate rest, it will cause the body's balance to become imbalanced and reduce resistance; both parties will also suffer from excessive fatigue, which will affect work and study efficiency.