We all know the importance for the health of drinking water, but science claims that drinking from plastic bottles may not be the best alternative for both you and the environment.
According to science, and with a report released by the BBC, we should avoid plastic bottles whenever possible - and this is true for both disposable and reusable ones.
The British publication warns of health complications that may arise from the option of ingesting bottled water, which is listed below.
When you expose plastic bottles to natural wear and tear, the heat you feel inside a car, the dishwasher, the ultraviolet radiation from the sun, or the microwave, the outermost layers of plastic can decompose. As a consequence, plastics classified with recycling code three or seven can release one chemical named Bisphenol A (BPA), while BPA-free plastics can release Bisphenol S (BPS).
These two chemicals, which are also found on receipts and in the coating of aluminum cans, can contaminate the liquid in the bottle, according to Cheryl Watson, a biochemist at the University of Texas, who conducted several studies on human exposure to BPA and BPS
The problem is that, even if ingested in small quantities, these substances can mimic estrogen, which can alter the functioning of the endocrine system. In humans, exposure has been associated with chronic illnesses, including diabetes, asthma and cancer. Animal studies suggest that exposure to the uterus may impair the development of the brain and immune system.
Researchers found that men and women who tried in vitro fertilization and had high levels of BPA in their blood, urine and work environment, had a lower chance of having a successful pregnancy. The conclusion is from a review of 91 studies published in the scientific journal Reproductive Toxicology.
Humans exposed to higher levels of BPA are at an increased risk of developing heart disease, according to a 2012 study published in the scientific journal Circulation. Although the correlation is not necessarily proof of the cause, the researchers believe that this may be due to the association of BPA with high blood pressure, a risk factor for the onset of heart disease.
The blood pressure of adults drinking in cans containing BPA increased almost instantly in a small but thorough study, carried out in 2015 and published in Hypertension magazine.
Unlike glass or steel bottles, both disposable and reusable plastic bottles decompose with regular use. Even tiny fissures can harbor bacteria, according to a research analysis published in the scientific journal Practical Gastroenterology.
Although most bacteria are harmless, according to Charles Gerba, professor of microbiology and environmental sciences at the University of Arizona, in the United States, bottles can house bacteria that cause flu, colds and noroviruses. (Washing them regularly with water and detergent can help, but this can help to further decompose the plastic).
Most plastic bottles appear to be recyclable, but as less than 1% of plastic is recycled more than once, most end up in the trash. This is what a study by Science Advances published in 2017 concluded, which examined plastics made between 1950 and 2015.
If this trend continues, the study authors estimate that there will be more than 11.7 million kilograms of plastic in landfills and / or the environment in 2050.
For the price of some bottles you can consume about 3,800 liters of tap water, according to the Environmental Protection Agency. A water purifier filter can be an excellent investment.
A 2017 report by the Environmental Working Group (EWG) that looked at the quality of drinking water in the 50 states of the United States found that almost all water systems across the country contain carcinogens, such as hexavalent chromium and nitrates.
(Reference - https://www.cosmopolitan.com/health-fitness/a10365779/plastic-water-bottles-bad/)
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