The rumors of killing the cola were spread in Central and South America decades ago. People believe that carbonic acid in cola can kill sperm, in which sugar can “detonate†sperm, and after shaking, coke can be sprayed deep into the vagina, so women will use this trick to kill sperm after “cockroachesâ€. Avoid pregnancy. In the 1960s, the American hard rock band The Fugs had a song "Coca-Cola douches" and said that.
It is indeed a wonderful idea, but it still needs scientific verification. In 1985, Umpierre, Hill, and Anderson of the Department of Obstetrics and Gynecology at the Harvard Medical School in the United States tried to verify the authenticity of the disease, and they rushed to the laboratory. They added frozen sperm to three test tubes containing cola. After observation, the happy result was released: the number of sperm decreased; Coke can affect sperm motility. Relevant conclusions were published in the form of letters from readers and published in the New England Journal of Medicine published on November 21 of that year.
This assertion suddenly caused an uproar. Two years later, Hong Chuanyue of Taipei’s Veterans General Hospital decided to use more rigorous experiments to verify after seeing the paper. They applied two brands of five different recipes for Cola: the classic, new, caffeine-free, diet-type in Coca-Cola and Pepsi. Through the transmembrane migration experiment method, the cola mixed with sperm was dropped on the membrane (it allowed sperm to pass through), and physiological saline was placed under the membrane. An hour later, they observed that at least 70% of the sperm remained viable and could successfully pass through the film and would not be killed by Coke. The results of the study published in the Journal of Human Toxicology have overturned the views of American scholars. In other words, cocaine is used to wash the vagina after sex, in order to achieve the purpose of contraception, it is not only impossible to achieve the goal but also easy to cause genital infections.
As a type of carbonated beverage (ie, adding carbon dioxide to beverages), Coke also adds caramel, pigment, and other ingredients. Of course, it also contains less than 1% of secret formulas made up of certain mysterious substances. According to reports, this recipe has been kept secret for more than a hundred years, but in 2000 the European Food Science Research Institute revealed that the mysterious substances include the extracts of viciae, ginger, mimosa, orange leaves, coca leaves, laurel and vanilla, etc. Things and dyes. It is them that make Coke taste unique. In related ingredients, caffeine has attracted everyone's attention. Therefore, there are rumors that the caffeine ingredients in cola have a spermicidal effect and should not be consumed. is this real?
In 2003, at the American Reproductive Medicine Annual Meeting, Fabio Pasqualotto from Brazil, after studying 750 male compatriots, concluded that men who drink coffee have better sperm mobility. It is caffeine that plays a key role in it. However, some scholars in the United States believe that drinking three cups of coffee a day will affect men’s fertility. The conclusion is that there is still no clear public opinion.
In addition, do not underestimate sperm. When it is in a suitable place, it has tenacious vitality. Normal sperm can live in the vagina for half a day, in the cervix can live up to 8 days, in the uterus, fallopian tubes is 2 and a half days. However, if it is excreted, it can only be a short-lived ghost - half an hour, but if you freeze it to minus ten degrees, you can live three days.
In the face of rumors, we must have scientific ideas. With the evolution of the rumor, "Coke will kill sperm and young men need to be careful", you can ignore it.
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