Ninety-eight percent of Americans have detectable PFAS — “forever chemicals” — in their bloodstream right now, according to the National Academies of Sciences, Engineering, and Medicine. These are synthetic compounds used in nonstick cookware, food packaging, stain-resistant fabrics, and firefighting foam since the 1950s. They’re called “forever chemicals” because they essentially don’t break down.
A 2026 study published in Frontiers in Aging found that elevated blood levels of specific PFAS compounds (PFNA and PFOSA) were associated with 2 to 4 years of accelerated epigenetic aging in men aged 50 to 64 — the exact demographic reading this.
This isn’t fringe science anymore. The American College of Cardiology published evidence in 2025 linking microplastics to hypertension, diabetes, and stroke. A 2024 study found microplastics in human arterial plaques — and patients with plastic-contaminated plaques had a 4.5-fold higher risk of major cardiovascular events over 34 months of follow-up.
Your body is accumulating things that weren’t part of human biology until 70 years ago. The question is what, if anything, you can do about it.
What We’re Actually Talking About
The major categories of environmental toxin burden relevant to longevity medicine:
- PFAS (Per- and Polyfluoroalkyl Substances): Over 12,000 synthetic compounds. Found in food packaging (including microwave popcorn bags, fast food containers), non-stick cookware, water-resistant clothing, carpeting, firefighting foam, and drinking water near military bases and industrial sites. The EPA found PFAS in approximately half of U.S. drinking water systems.
- Microplastics and Nanoplastics: Particles <5mm derived from plastic degradation, microbeads, synthetic fibers, and food/beverage packaging. Humans ingest or inhale an estimated 74,000–121,000 microplastic particles per year, with the highest burden from bottled water, seafood, and airborne particles.
- Heavy Metals: Lead (ubiquitous in pre-1978 painted homes, soil, some ceramics), mercury (dental amalgam, large fish consumption), arsenic (well water in certain regions, rice), cadmium (tobacco smoke, leafy vegetables grown in contaminated soil). These accumulate in bone, kidneys, liver, and nervous system over decades.
- Mold Mycotoxins: Produced by mold species (Aspergillus, Fusarium, Stachybotrys) in water-damaged buildings. Mycotoxins like aflatoxin, ochratoxin A, and trichothecenes can accumulate in body fat and affect immune function and neurological health.
The Science: What Environmental Toxins Are Doing to Your Biology
Microplastics and Cardiovascular Disease
The most alarming 2024 finding came from a study published in the New England Journal of Medicine: researchers examined carotid endarterectomy specimens from 257 patients and found nanoplastics in atherosclerotic plaques. Patients with detectable plastic in their arterial plaques had a 4.5-fold higher risk of major adverse cardiovascular events (myocardial infarction, stroke, or death) over 34 months of follow-up compared to those without detectable plastics.
A 2025 review in Annals of Medicine and Surgery documented the mechanisms: microplastics induce oxidative stress, mitochondrial dysfunction, and apoptosis in cardiovascular tissue. They promote cardiac fibrosis through Wnt/β-catenin pathway activation and accelerate vascular aging through ROS-mediated CDK5 signaling. See the published mechanism review for the full mechanistic analysis.
The American College of Cardiology’s 2025 ACC.25 conference presented data showing microplastics concentration was positively correlated with hypertension, diabetes, and stroke prevalence — and ranked in the top 10 predictors of chronic disease out of 154 social, economic, and environmental factors analyzed.
A November 2025 University of California Riverside study in male mice found microplastic exposure increased aortic root plaque by 63% and brachiocephalic artery plaque by 624% compared to controls. The sex-specific effect — males only — may reflect hormonal modulation of inflammatory response, with estrogen potentially offering some protection in females.
PFAS and Accelerated Epigenetic Aging
The 2026 Frontiers in Aging study (published February 2026) analyzed blood PFAS levels in 326 U.S. adults aged 50+ from the 1999–2000 NHANES cohort and applied multiple validated epigenetic aging clocks, including GrimAge.
Key findings:
- Elevated PFNA (perfluorononanoic acid) levels were associated with 2–4 years of GrimAge-accelerated aging in adults aged 50–64
- This association was strongest in men
- PFSA showed a distinct association with LinAge-accelerated aging — different PFAS chemicals appear to affect aging through distinct biological pathways
- Exposure was found in essentially all participants
The mechanistic explanation: PFAS interfere with hormone signaling, immune regulation, lipid metabolism, mitochondrial function, and inflammation control — all of which are fundamental regulators of the biological aging process. PFAS effectively “dysregulate the systems that determine how fast you age,” in the words of the study’s senior author.
A 2026 analysis covered by CNN and Healthline specifically highlighted the sex-specific risk: men in their 50s showed the most pronounced PFAS-associated biological aging acceleration — coinciding with mid-life changes in cardiometabolic function and stress-response systems.
Heavy Metals: The Cumulative Burden
Lead, mercury, arsenic, and cadmium accumulate over decades with essentially no natural excretion pathway. They disrupt:
- Mitochondrial electron transport chain function
- Antioxidant defense (particularly glutathione and superoxide dismutase)
- Thyroid hormone signaling (mercury is a particularly potent thyroid disruptor)
- Neurotransmitter synthesis and neuroinflammation
Blood lead testing reflects recent exposure, not cumulative body burden. DMSA chelation challenge testing — supervised provocation with a chelating agent followed by urine collection — is more informative for chronic accumulation, though this remains somewhat controversial in terms of standardization.
The Gap in Standard Care
Your annual physical almost certainly includes no environmental toxin testing. Your PCP will check your cholesterol, blood pressure, and maybe A1c. They will not check your blood mercury, assess your PFAS burden, or look for mycotoxin exposure.
This is a significant gap, particularly for patients over 40 who:
- Grew up in pre-1978 homes (virtually guaranteed lead exposure)
- Eat large amounts of fish (mercury accumulation)
- Live near industrial areas or military bases (PFAS groundwater contamination)
- Work in specific industries (construction, painting, smelting, agriculture)
- Have experienced water damage in their home or office
The conventional medicine standard for heavy metal testing is to wait until someone presents with symptoms of acute toxicity — at which point decades of subclinical accumulation have already occurred.
Chelation therapy — the medical treatment for heavy metal poisoning — has FDA approval for acute toxic metal poisoning (lead, mercury, arsenic, iron, copper). It is not FDA-approved for cardiovascular disease despite some advocacy, and Cleveland Clinic guidance states there is no scientific evidence to support chelation for conditions beyond established heavy metal toxicity.
For longevity applications, the most evidence-based approach is identifying the toxic burden accurately through validated testing, then addressing it through a combination of evidence-supported detoxification support (dietary, nutritional) and, where heavy metal levels are clinically elevated, appropriate FDA-approved chelation under physician supervision.
“We are the first generation of humans to accumulate synthetic chemicals that simply didn’t exist 70 years ago. The question is what, if anything, you can do about it.”
How We Use Environmental Toxin Testing at Pravida Health
Environmental toxin assessment is included in our Pinnacle membership tier and is part of comprehensive Executive Health evaluations. Our protocol pairs validated toxin measurement with full metabolic and inflammatory workup — because environmental burden never exists in isolation from the body’s broader physiology.
Testing
- Heavy metal panel (whole blood mercury, lead, arsenic; urine cadmium; RBC heavy metals for chronic exposure assessment)
- Mycotoxin urine panel (Ochratoxin A, aflatoxins, trichothecenes, gliotoxin) when exposure history suggests mold
- Comprehensive metabolic assessment for signs of mitochondrial dysfunction that may indicate toxic burden
- Inflammatory markers (hsCRP, IL-6) as downstream indicators of toxic-driven inflammation
Reduction Strategies
- PFAS reduction: Filtered water (solid carbon block or reverse osmosis), eliminating non-stick cookware, reducing processed food packaging exposure
- Mercury reduction: Limiting high-mercury fish (swordfish, king mackerel, shark, tilefish), optimizing selenium intake (competes with mercury at binding sites)
- Lead: HEPA filtration if older home, calcium and zinc supplementation (compete with lead for absorption)
- General: Optimizing NAD+, glutathione precursors, and mitochondrial support to improve resilience against oxidative damage
Therapeutic Plasma Exchange (TPE) is also part of our protocol for select patients — specifically those with high inflammatory toxin burden and documented accumulation of pro-inflammatory proteins. TPE directly removes plasma-borne toxins and inflammatory mediators, offering a more active intervention for patients whose burden warrants it. Ask us whether TPE is appropriate for your situation.
What You Can Do Today
- Filter your water. Reverse osmosis or solid carbon block filtration removes PFAS. Standard pitcher filters (Brita) do not meaningfully remove PFAS. This is the single highest-impact daily action for reducing ongoing PFAS exposure.
- Eliminate non-stick cookware. Switch to cast iron, stainless steel, or ceramic. PTFE-based non-stick coatings release PFAS when overheated or scratched.
- Reduce high-mercury fish consumption. The FDA recommends no more than 2–3 servings per week of low-mercury fish for most adults; limit or avoid swordfish, king mackerel, shark, and tilefish.
- Request heavy metal testing if your history warrants it. If you grew up in a pre-1978 home, have a history of high fish consumption, or work in a high-exposure industry, whole-blood mercury and lead testing is a reasonable baseline ask from your physician.
- Don’t fall for unproven “detox” protocols. Commercially marketed detox cleanses, detox supplements, and infrared sauna protocols have little to no clinical evidence for reducing validated heavy metal burden. Focus on reducing ongoing exposure and supporting your body’s natural detoxification systems (liver, kidneys, bile) with adequate protein, B vitamins, and cruciferous vegetables.
Frequently Asked Questions
Are microplastics actually dangerous to human health?
The evidence of harm is rapidly accumulating. Microplastics have been detected in human arterial plaques, with a 4.5-fold higher cardiovascular event rate in patients with plastic-contaminated plaques (New England Journal of Medicine, 2024). A 2025 ACC analysis linked microplastics exposure to hypertension, diabetes, and stroke. The causality question is still being established, but the correlation data is alarming enough that reducing exposure is a reasonable precaution.
What is the best test for heavy metal exposure?
For recent exposure, whole blood levels are most appropriate. For chronic accumulated burden, provoked urine testing using FDA-approved chelating agents (DMSA challenge) is more informative but requires clinical supervision and interpretation. Standard serum heavy metal panels are often insufficient for detecting the cumulative tissue burden that matters for longevity purposes.
What can actually reduce PFAS in my body?
PFAS elimination is primarily through cessation of exposure. The half-life of PFAS in the body ranges from 2.5 to 8+ years depending on the compound — meaning even after stopping exposure, levels decline slowly. Some research suggests that bile acid sequestrants (like cholestyramine), certain soluble fibers, and reducing enterohepatic recirculation may modestly accelerate PFAS excretion, but this evidence is preliminary. The primary intervention is reducing ongoing exposure.
Is chelation therapy appropriate for general detoxification?
No. FDA-approved chelation therapy is a medical treatment for specific heavy metal toxicity diagnoses — not a general detoxification protocol. Unsupervised chelation can strip essential minerals (zinc, copper, calcium), cause kidney damage, and create serious adverse effects. If you have documented clinical heavy metal poisoning, chelation under physician supervision is appropriate. For subclinical exposures, chelation is not the evidence-based answer.
Does sauna help remove toxins?
Sauna does increase the secretion of some compounds through sweat, including certain heavy metals (mercury particularly) and potentially PFAS at low levels. It also supports cardiovascular function, reduces blood pressure, and has well-documented health benefits independent of any detoxification effect. However, the quantity of toxins removed through sweat is small relative to total body burden. Sauna is a useful adjunct — not a primary detoxification strategy.
Concerned about your environmental toxin burden?
Pravida Health’s Pinnacle membership and Executive Health program include comprehensive environmental toxin testing and a personalized reduction and support protocol. We measure first. Then we act on evidence — not guesswork.
Schedule a Consultation