BPA is a toxic chemical. Animal experiments have found that BPA has the effect of mimicking estrogen. Even a very low dose can cause precocious females, decreased sperm count, and prostate growth in animals. In addition, some data show that BPA has certain embryotoxicity and teratogenicity, which can significantly increase the occurrence of animal ovarian cancer, prostate cancer, leukemia and other cancers. At the same time, studies have shown that BPA is associated with asthma in mice. Preliminary human experiments have shown that pregnant women affected by BPA in the first trimester may cause infants with asthma.
Scientists specifically conducted research on the effects of BPA on male endocrine with humans as test subjects. In this experiment, the researchers compared a group of male workers who had been exposed to BPA environment in the factory for more than 5 years with another group of workers who had not been exposed to BPA environment for 5 years. The results showed that the risk of erectile dysfunction in male workers exposed to BPA was 4 times that of the control group, and the possibility of ejaculation difficulties was 7 times that of the control group. The results of this study are the first direct evidence that long-term exposure to BPA is harmful to health.
Studies have shown that BPA is a risk factor for human cancer. Some research results suggest that BPA in plastic products such as plastic milk bottles may affect the growth and development of infants and young children, and cause damage to children’s brains and sexual organs.
Studies have shown that the PC material used to make plastic containers may release toxic BPA. The higher the temperature, the faster the release rate.
BPA will cause following harm after entering the human esophagus
Firstly, BPA leads to organ failure, leukemia, and rapid weight loss or rapid increase
Secondly, it leads to excessive secretion of female estrogen, precocious puberty, and less secretion of male sperm, impairing reproductive function.
Thirdly, it may cause diseases such as breast cancer and birth defects of newborns. There are also more potential toxicity of BPA after entering the esophagus, we need to pay close attention to its potential toxicity.
If the water bottles people used contain BPA, then these BPA will have the opportunity to enter the esophagus along with the water and harm people’s health.
BPA and Body Function
Scientific analysis shows that BPA is an environmental secretion disruptor with weak estrogen activity. A large amount of BPA can dialysis from the garbage to the surrounding ecosystems, which leads to the potential danger of human and wildlife exposure. Some experimental data show that BPA can be detected in the urine of 93% of the tested population, as well as in human follicular fluid, amniotic fluid, umbilical cord blood, and even breast milk. This discovery will be a fatal warning to us. BPA can be passed to newborns through breast milk. Then think about how shocking news this will be. Before the subject of environmental health science, I didn’t know much about BPA, and I never thought about the potential hazards hidden in the details of my life. What is more worthy of being pointed out is that in recent years, a number of research cases have shown that the main culprit, such as infertility, reproductive tract malformations, breast cancer and prostate disease, is BPA. And when the BPA content is higher than the normal level, it will easily lead to female obesity, endometrial hyperplasia, habitual miscarriage, and the male hormone level in the male serum will also increase.
It is a self-evident conclusion that BPA is harmful to health. The government immediately banned the use of BPA seems to be a matter of course.
However, under the guidance of the traditional toxicology view of “the dose size determines the hazard”, people have always believed that the concentration of BPA that people are exposed to in daily life environment is very low, not enough to constitute a hazard to the human body. Until the 1980s, the official conclusion after using standard methods to detect BPA was still: only when the dose of BPA is much higher than the current human body content, can it cause organ failure, leukemia and weight. A sharp decline. Under this understanding, BPA is widely used with confidence. In the long-running debate between the private sector, manufacturers, and the government about “low-dose BPA is harmful or safe”, major chemical manufacturers are still producing various BPA-containing products and selling them overseas. Due to the results of various studies on BPA and the occurrence of adverse events, such as the “baby bottle containing BPA” incident, many countries have rectified the production and use of this chemical substance. For example, the United States has taken the lead in banning the use of the chemical substance BPA in baby bottles and other food and beverage containers; the Canadian government has banned the import and sale of polycarbonate plastic baby bottles containing BPA; the French Senate has also begun to formulate BPA Prohibition policy.