Researchers originating from Shanghai Jiao Tong University conducted a study wherein they identified two chemical agents capable of hastening the biological aging process in middle-aged males. These specific substances, perfluorononanoic acid and perfluorooctanesulfonamide, belong to a class commonly referred to as “forever chemicals.”
The findings from this scientific endeavor were published in the journal Frontiers in Aging. These synthetic compounds are extensively utilized in the manufacturing of non-stick coatings, repellent fabrics, packaging materials, and fire-fighting foams. Due to the highly stable bonds they possess, these chemicals resist breakdown in the environment almost entirely, leading to accumulation in water sources, soil, and the human body. Previous scientific efforts have already connected exposure to certain chemicals in this group with an increased propensity for various illnesses and endocrine imbalances.
The investigation involved examining data from 326 individuals who participated in the US National Health and Nutrition Examination Survey spanning 1999–2000. The scientists quantified the levels of eleven distinct “forever chemicals” present in the blood samples of the participants, alongside assessing DNA modifications that influence gene function. By employing twelve different methodologies designed to calculate biological age, the experts contrasted this measure with the chronological age of the subjects.
Both identified chemicals were present in the blood of 95% of the individuals examined. The research demonstrated that elevated concentrations of these agents exhibited a statistically significant correlation with accelerated aging specifically in men aged between 50 and 64 years; however, this association was not observed in female participants.
The paper’s authors postulate that the middle-aged period for men represents a particularly susceptible phase where the body registers heightened sensitivity to external stressors. Furthermore, lifestyle factors and co-occurring conditions could influence the aging metrics, potentially amplifying the detrimental effects exerted by these chemical contaminants.
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