The origin of the topic of cola sperm killing
There is an argument circulating on this issue from the Internet. This claim originated from the popular car shock between the United States and the United States during the sexual liberation of the 1960s. Afterwards, the woman will use bottled cola to insert seminal fluid into the vagina to achieve contraception. Later I do not know how to pass it to drink cola and kill sperm.
Coke really kill sperm?
The answer is yes, but there are preconditions! The premise of cola killing is direct contact between cola and sperm. Harvard Medical School conducted "killing" experiments on three different types of cola drinks sold on the market. They put frozen sperm into tubes and pour different cola drinks. After repeated testing, it was concluded that Coke really has a spermicidal effect. Flushing vaginal contraception in Coke in the 1950s and 1960s is indeed a problem, but research has been poor. Because the sperm's swimming speed is more than 18 centimeters per hour, they can enter the cervical canal in just a few seconds. Afterwards, flushing is too late.
In 1985, Dr. Sharee A. Umpierre of the Department of Obstetrics and Gynecology at the Harvard Medical School of the United States mixed sperm and cola in vitro to test the number of surviving sperm and concluded that Coke had a certain spermicidal effect. In 1987, Taipei Hong Chunyue and others at Rongmin General Hospital tested whether spermatozoa still have transmembrane migration activity in the presence of Coke and concluded that Coke does not affect sperm activity. The two completely contrary research conclusions have jointly won the 2008 Nobel Prize in Chemistry. Irrespective of the results of such in-vitro laboratory research, it is unscientific to use cola to rinse the vagina afterwards for contraceptive purposes. Because before the flushing, a number of sperm about 100,000 may have reached the uterus. Sugar in cola can also cause genital bacterial infections. Today, when contraceptive methods are developed, safer and more effective methods should be chosen. It should be noted that it is believed that the phrase “Coke kills sperm†appeared in the 1950s. At that time, oral contraceptives and a variety of contraceptive methods were not yet available.
Does drinking cola kill sperm?
Cola and sperm are in direct contact and may kill sperm. Coca-Cola is absorbed into the stomach. It does not come into direct contact with sperm. It is digested and decomposed in the stomach and can not kill sperm. Between 2001 and 2006, the Danish doctor Tina Kold Jensen investigated the sperm quality and caffeine intake of 2,554 young men. As a result, it was found that daily consumption of coffee (less than 800 mg total caffeine) and consumption of Coke (two bottles of 500 ml per day) did not affect the number, vigor, and morphology of sperm. Do you really drink at least two bottles of Coke every day and drink at least 7 cups of coffee? If not, then there is no need to worry too much about the rumors that coffee and Coke are killing sperm. For a very small minority (3%) of young people who drink "cola" or cola or caffeine, some of them do have problems with decreased sperm quality. Dr. Janssen believes that these people not only drink more Coke but also other unhealthy eating habits. In other words, drinking "massive" cola is only one aspect of bad eating habits. Therefore, there is no evidence that drinking large amounts of cola causes a decline in sperm quality. In particular, despite the fact that these large numbers of people who drink Coke, the total number of sperm dropped by 30%, still within the normal number of sperm given by the World Health Organization.
The real danger of drinking coke
Coke is a typical carbonated beverage. Carbonated beverages are soft drinks. Their main feature is the addition of carbon dioxide to beverages. According to the national soft drink classification standard, there is a special type of carbonated beverage that is a cola type, which refers to carbonated beverages that contain caramel color, cola flavor, or a mixture of similar cola nuts and fruit flavors.
According to the data on food composition, ordinary Coke contains about 89% water, 11% sugar, about 11 milligrams of phosphorus per 100 grams, contains about 10 milligrams of caffeine, and other ingredients in a very small amount. Is there full of sugar, colorings, and flavors? The dangers of drinking Coke for a long time are:
1. Coke contains caffeine and is addictive for long drinks.
2, Cola contains carbonic acid, drinking too much is not good for the body. Because the human body is in a weak alkaline condition the best.
3, Coke drank more teeth. Because cola contains carbonic acid and carbon dioxide dissolved in the formation of carbonic acid, a certain degree of corrosion of enamel.
4, Cola contains a lot of sugar, these sugars absorb quickly and easily cause excessive calorie intake. Long drink will get fat.
5, cola contains a higher content of caffeine, caffeine in the body will endanger the fetus's brain, heart and other organs, the same will cause fetal malformation or congenital disease.
6, Coke will lead to osteoporosis. For people who love Coke, the probability of fracture is 5 times that of drinking soft drinks. Phosphoric acid in cola may be the cause of increased fracture rates because of the large amount of phosphorus that affects the body's absorption of calcium. The caffeine contained in cola also has a decalcifying effect. 7, Cola can dissolve nails. There have been people who have experimented and put nails into cola. Iron nails will gradually dissolve! Phosphoric acid in cola is a strong acid, and even when diluted, it has a certain degree of acidity. Although Coke will not dissolve our stomach, it will still bring a certain burden on the stomach. People with stomach ulcers should not drink it.
8, cola drink more easily esophageal cancer. Indian medical scientists have found that the incidence of esophageal cancer is relatively high among people with large consumption of carbonated drinks such as Coke. Researchers speculate that it may be that the pressure of carbon dioxide causes gastric acid to flow back into the esophagus, thereby stimulating the esophagus and inducing esophageal cancer. However, this explanation has not yet been fully investigated. However, it is certain that people suffering from digestive diseases and those with poor gastrointestinal function should strictly control inflated drinks.
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