Prenatal exposure to a group of harmful, widely used chemicals might be connected to an increased risk of high blood pressure in adolescents, as suggested by a recent study.
Perfluoroalkyl and polyfluoroalkyl substances, often referred to as PFAS, are synthetic chemicals known for their persistence in the environment. They have been associated with various health issues, including certain types of cancer, problems related to endocrine function, and developmental challenges in children.
The new findings indicate that these chemicals could also heighten the risk of cardiovascular disease in teenagers, according to a study published in the Journal of the American Heart Association.
The research analyzed data from over a thousand children, tracking them for about 12 years. It involved reviewing maternal plasma samples taken shortly after childbirth and the blood pressure levels of the children recorded in medical files.
The results revealed that children exposed to higher levels of PFAS in the womb were more likely to experience elevated blood pressure as they grew, especially in adolescence. The correlation was notably stronger among males and Black children, according to Dr. Mingyu Zhang, a senior researcher involved in the study.
However, it’s important to note that this study is observational and can only suggest associations rather than establish definitive causation between PFAS exposure and high blood pressure, as Zhang pointed out.
While other influencing factors were taken into account, other variables could also play a role in the relationship between PFAS and blood pressure, he mentioned.
That said, the robustness of the findings is worth noting since this study is one of the largest and most diverse conducted on this topic, employing careful research methods, according to Dr. Carmen Marsit from Emory University, who wasn’t part of the research team.
This area of study is significant because high blood pressure in childhood often leads to similar issues later in life, Zhang remarked. High blood pressure is a primary risk factor for cardiovascular diseases, which are a leading cause of mortality in the U.S.
The most significant effects were observed in adolescents who had been exposed to a combination of different PFAS types during pregnancy, suggesting there may be a cumulative effect on heart health, Marsit added.
“It’s concerning, as most children likely encounter various PFAS,” he said.
The link to increased blood pressure during adolescence suggests that the influence of these chemicals might take time to manifest, indicating a longer latency period for effects, Marsit noted.
This latency calls for not just reducing exposure but also developing interventions aimed at mitigating health issues for those exposed in earlier stages of life.
PFAS are often referred to as “forever chemicals” because they remain in the environment and the human body for extended periods.
According to data from the National Health and Nutrition Examination Survey, nearly everyone in the U.S. has detectable levels of these chemicals, Marsit shared in previous discussions about the topic.
There are ways to decrease exposure, he mentioned. Major exposure sources are commonly food, water, and products that are waterproof or stain-resistant.
To minimize risk, using filters to drink clean water, especially out of metal or glass containers, can be helpful, as plastics often contain PFAS and other harmful substances. A diet focusing on fresh foods can also be beneficial, as food packaging frequently includes PFAS coatings. Avoiding nonstick cookware in favor of metal or ceramic options is another practical step.
Regular cleaning, vacuuming, and washing hands frequently before meals can also help lower PFAS levels.
Additionally, lifestyle choices can mitigate the risk of high blood pressure for those who have been exposed to PFAS, according to Zhang. Maintaining a healthy weight, eating well, reducing salt consumption, and promoting physical activity are all advisable.
Ultimately, though, addressing PFAS exposure isn’t solely the individual’s responsibility, Zhang emphasized. There is a need for changes at the policy level to restrict and phase out PFAS in various products and improve monitoring and regulation of these chemicals in water sources.
