Mood "Little raincoat" reveals the development history and function of condoms

The history of condom development

When summer comes, you should have some fun, maybe at a bar, or at a group barbecue, or dating your partner in your room. When you start a sweet journey: "Honey", "handsome Brother", "what's your name", "can you put on the swim bladder?" Or "can you put on sheep intestines?" At this point, you have to consider contraception.

If it had been in the early 18th century, that would have been your sex life. Don't doubt it, there was no choice at that time! But even this is much better than the Khufu era in Egypt, as far back as 1305 BC, the earliest condoms were made of linen. At that time, the sheath was a status symbol and was also used as a protective device-to prevent bugs and tropical diseases rather than pregnancy and reproductive infections. What's even weirder is that wearing it can promote fertility.

In the 16th century, Italian anatomist Gabriel Fallopius (discoverer of fallopian tubes) wrote an article saying that soaking linen jackets in boiled herbs could effectively prevent syphilis.

Think of the poor ancestors, the intestines of animals did not scare them, and these things were at the forefront of condoms at that time strap on dildo , because people used them for the first time to prevent pregnancy. If you are not willing to pay, you are destined to get raw intestines, which are stuck or stitched up at best. If you spend more money, the latest manufacturing process will be soaked, elongated, and dried to make it a sperm killer.

In European slaughterhouses, many casings are produced, enough for household use, and even sold inside and outside the urban area. In fact, before the 17th century, the vast majority of American condoms were imported from Europe. Imports alone cannot satisfy them, and in 1844 a Philadelphia guide instructed citizens to infiltrate, twist, and dry the intestines of animals at home to make condoms. When the material is ready, you can cut it to the right length and tie a rope at one end for preservation. Feel better? There are even operating instructions to make it fragrant and smooth. Charles Goodyear's job is to make better condoms and recycle them by studying the stability of rubber. The vulcanization process melts the original rubber when it is heated, making the cracked rubber waterproof and gas-proof, and isolating many things.

The emergence of rubber has greatly changed the material of condoms from animals to plants, and latex is now the main material for making condoms. In fact, the contradictory demand for ultra-thin and comfortable, but at the same time safe and strong, promotes the continuous development of condoms. "We will continue this path as much as possible," said Matthew Groskorth, who works for sexual health and works for Lifestyles. "decades ago, condoms were about 0.1mm thick. Now, Lifestyles's thinnest condoms are only 0.4mm thick."

The shape is also changing with each passing day, with condoms showing bumps and different flavors, and Lifestyles is paying more attention to tailoring. They want to design the condom in a mushroom-like shape instead of the original straight tube, which will give more space at the top. Although everything is going well, some problems are detected in the inflatable test horse dildo , which is to blow the sampled condom with a machine to check its elasticity and strength. The fatal drawback of this design is that its shaft will touch the hat and can only be discarded.

The condom is designed straight and thin according to the need, and its material is constantly improving. Considering that the proteins in latex can cause some unsuitability and allergies, LifeStyles and other companies are looking for materials to make the body more comfortable. After ten years of research and development, many giants are rushing to put it on the market. Just two years ago, LifeStyles launched a condom made of polyisoprene, a synthetic latex. They claim that SKYN polar skin is softer than raw latex.

Finally, 300 years after the swim bladder entered sex, we can calmly take the condom from the nightstand without worrying about what animal organ it is.

The functions of condoms

In addition to safe, reliable, easy to use, economical, harmless to the human body, does not interfere with any physiological function, condoms have other benefits: ① can prevent sexually transmitted diseases, such as syphilis, gonorrhea, AIDS and so on. ② prevents prepuce from irritating the cervix and reduces the risk of cervical cancer. ③ for couples with infertility caused by immune factors, the use of condoms can reduce the titer of antisperm antibodies in the woman's body fluid, which is one of the methods to treat immune infertility. ④ condom can reduce the sensitivity of glans, thus prolong the time of sexual intercourse, and has a therapeutic effect on patients with premature ejaculation. ⑤ occasionally a woman is allergic to the man's semen. The occurrence of urticaria and other reactions, the use of condoms can avoid allergies. The use of condoms in the third trimester of pregnancy in ⑥ can prevent intrauterine infection and the resulting premature delivery or neonatal death. The inadequacies of condoms mainly have a slight impact on the sexiness of the man, in addition, very few people are allergic to latex and should not be used. In short, with the popularization of reproductive health knowledge, condoms, as a tool for contraception, prevention and treatment of sexually transmitted diseases and improving the quality of sexual life, will be accepted by more and more people.

At present, there are two different views on the impact of condoms on sexual pleasure, so they also hold two different attitudes towards condom use. Some people think that using condoms will prolong sexual intercourse time and thus feel happier; others think that condoms will reduce the pleasure of sexual intercourse, so they are not willing to accept it. When men have sex with condoms, the sensitivity of the head of the penis is reduced, and the time to reach the best part of sex may be prolonged, but it does not affect the pleasure produced during ejaculation. In general, under normal circumstances, it takes longer for women to reach the best part of sex than men, and if men use condoms, they can prolong sexual intercourse and satisfy women's sexuality. Especially for men with premature ejaculation dildo shop , wearing condoms for sexual intercourse can prevent premature ejaculation, so that the sexual life can be harmonious.
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