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Handling Invoices May Pose Health Risks Due to BPA, a Concerning Chemical Compound That Raises Questions.
Simple everyday objects, such as invoices, can represent an invisible threat to health. The explanation lies in BPA, a chemical compound found in thermal paper used for receipts.
According to experts, frequent exposure to this substance, even in small amounts, can interfere with hormones and affect metabolic and reproductive health.
Authorities are already raising alerts, and knowing these curiosities can help prevent future harm.
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What’s Behind Invoices: Understand the Chemical Danger
Invoices, food packaging, toys, and even plastic bottles have one thing in common: the presence of bisphenol A (BPA).
This compound is widely used in the manufacture of plastics and resins, but it is also present in the thermal paper used for receipts.
The problem is that BPA is classified as an endocrine disruptor, meaning it can affect the human hormonal system.
It mainly interferes with sex hormones, raising alerts for health risks, especially with continuous exposure.
How Does BPA Affect the Human Body?
BPA can behave similarly to estradiol, one of the main female sex hormones.
By binding to hormonal receptors in the body, it can impair the normal functioning of natural hormones, like a “fake key” that occupies the wrong lock.
This type of interference is concerning. According to Elaine Costa, coordinator of the Environmental Endocrinology Commission of SBEM, “there is evidence that these changes can occur even in utero, influencing the metabolic health of future generations.”
Curiosities and Scientific Discoveries About BPA
Studies with animals reveal severe effects of BPA exposure: reduced fertility, obesity, diabetes, menstrual cycle changes, polycystic ovary syndrome, and even types of cancer.
Márcia Mendonça, a gynecologist at UFMG, warns of the risk of estrogenic or anti-estrogenic action from these compounds, which alter the delicate hormonal balance.
An important curiosity is that the World Health Organization (WHO) recognizes about 800 compounds suspected of causing this type of interference. However, only a small portion has been studied in depth, leading to uncertainties about the actual health impact.
Invisible Exposure and Absence of Safe Limits
According to Anvisa, the most visible effects of BPA appear at high doses. However, recent research suggests that even low doses may be associated with neurological changes, hormonal alterations, and reproductive issues. The results are inconclusive, but they point to the need for caution.
Elaine Costa emphasizes: “Absence of evidence is not evidence of absence. So, if we know it can cause harm, we need to prevent it.” Therefore, even in cases like handling invoices, caution should be reinforced.
How to Protect Yourself from BPA in Daily Life
Although it is difficult to completely avoid BPA, it is possible to reduce exposure with simple actions. Some practical recommendations are to avoid heating food in plastics, especially in the microwave.
Prefer glass or stainless steel containers for storing and preparing food. Reduce contact with invoices by avoiding touching them for long periods. Dispose of plastics properly to avoid environmental contamination and return to the food chain.
Carlos Minanni, an endocrinologist at Hospital Israelita Albert Einstein, reinforces that these small changes in habit can make a big difference over a lifetime.
The Role of Legislation and the Future of Materials
The absence of strict control over BPA concerns experts. According to Elaine Costa, “the migration limit for food should be zero.” She also advocates for more investment in research to develop safe plastics that do not interfere with the endocrine system.
Currently, tests that detect the presence of BPA in the body—through urine or saliva—are only available in specialized laboratories due to the high cost of the technology used.
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