Sex is an important part of life, slightly inferior to food and sleep. Doing it is pleasant and useful. However, even prostitutes in Kiev, who specialize in providing a variety of intimate services, do not know everything about sex. Do you want to test your knowledge? Read about the five most interesting facts related to sex. Fact #1. Sperm not only promotes fertilization, but also serves as a cosmetic product, an antidepressant and a spy weapon at the same time Many women will confirm that the most pleasant sex is sexual intercourse without a condom, when a man cums inside. This is due not only to psychology, but also to the chemical composition of sperm. It contains a lot of trace elements that help to raise the mood, improve sleep, and strengthen the relationship between a man and a woman by strengthening the sense of attachment. The same chemical composition turns sperm into a miracle cream that effectively fights acne and rejuvenates the skin. The chemical composition of sperm was studied not only by scientists, but also by British intelligence specialists. They found out that it can be used as an invisible ink, since after drying it does not leave traces on the paper, but is clearly visible in ultraviolet rays. Fact #2. The speed of sperm flight is higher than the world record for sprinting At the moment, the Guinness Book of Records records a record running speed of 44.24 km/h. The speed of flight of sperm during ejaculation may not be much, but still higher. It is 45 km/h. However, this applies only to the first "shot". Fact #3. Women have more than five erogenous zones, the stimulation of which can cause an orgasm Scientists at Rutgers University in the United States conducted large-scale studies that allowed a thorough study of female sexuality. According to the results of these studies, it was proved that women can experience an orgasm from stimulation: clitoris; vaginas; cervical cancer; nipples and breasts; other areas (legs, back, neck, etc.). Interestingly, the so-called "other zones" in each woman have an individual sensitivity. So, during the study, it was determined that particularly sensitive points can be located on the calf of the left leg, while in the same place on the right leg there are no sensitive endings. What does this mean? That only erotic massage of the whole body will help to find out all the weak points of the partner. In addition to the amazing sensitivity, women can also be struck by the unusual work of the brain. The fact is that the stimulation of these erogenous zones causes a reaction in different parts of the female brain. Fact #4. A woman is orgasm lasts 3 times longer than a man is and can occur unexpectedly On average, an orgasm lasts 6 seconds for men and 20 seconds for women. Thus, women are at the peak of pleasure 3.33 times longer. At the same time, a man can only experience an orgasm during sex, masturbation or nighttime erotic dreams. A woman can experience an orgasm even during childbirth (although this is extremely rare). Fact #5. Only 56% of women experience an orgasm during sex, and 10% have never experienced it Once the world-famous singer and actress Marilyn Monroe admitted that she had never experienced an orgasm in her life. This is surprising, because the sex symbol of the last century had at least two dozen partners. Had none of them been able to satisfy her? This question was taken up by sociologists and sexologists. Surveys have shown that only 56% of women experience an orgasm during sex, 23% "finish" later on their own with the help of sex toys and finger masturbation, 11% can only finish under certain conditions (with a certain partner, in the right position, etc.), and 10% have never experienced an orgasm at all.