Knowledge Base

Everything You Need to Go Deeper.

Articles, research summaries, a TEDx talk, frequently asked questions, media appearances, and downloadable guides — all in one place.

From the Blog

Latest Articles

FEATURE · HEALTH SCIENCE

The 2024 NEJM Study That Should Have Changed Everything We Know About Microplastics

A landmark New England Journal of Medicine study found that patients with microplastics in their arterial plaques faced a 4.5× higher rate of cardiovascular events. We break down what the study found, what it means, and why it matters to you right now.

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WATER · 8 MIN READ

Is Bottled Water Worse Than Tap? What the Microplastic Data Actually Shows

Studies consistently find higher microplastic concentrations in bottled water than in filtered tap water — often by a factor of 22. Here is what you need to know.

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PARENTING · 10 MIN READ

Microplastics in Infant Feeding: What Parents Need to Know Right Now

Microplastics have been detected in breast milk, placental tissue, and baby formula prepared in polypropylene bottles. A physician's guide for parents.

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ENDOCRINOLOGY · 7 MIN READ

BPA-Free Doesn't Mean Safe: The New Generation of Plastic Endocrine Disruptors

BPS and BPF — the plasticizers used to replace BPA — exhibit similar or greater hormonal disruption in emerging studies. What you need to know.

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NEUROLOGY · 9 MIN READ

Plastic in the Brain: What We Know About Nanoplastics and Neurological Risk

Nanoplastics have been confirmed in human brain tissue. We examine what the current science says and what it does — and does not — imply about neurological health.

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ENVIRONMENT · 6 MIN READ

From Ocean to Organ: How Environmental Plastic Contamination Becomes Human Health Crisis

The environmental and human health dimensions of microplastics are not separate problems. We trace the pathway from ocean pollution to human exposure.

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NUTRITION · 8 MIN READ

The Plastic in Your Diet: A Category-by-Category Guide to Dietary Microplastic Sources

From sea salt to tea bags to canned goods — a systematic breakdown of where microplastics enter the food supply and what you can do at each step.

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FETAL HEALTH · 11 MIN READ

The Fortress Has Fallen: Microplastics in the Womb and What They Mean for the Next Generation

Microplastics have been found in human placentas, amniotic fluid, and fetal organs. How plastic exposure before birth alters hormonal development, the fetal brain, and — through epigenetic changes — grandchildren.

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SOLUTIONS · 7 MIN READ

From Homo Plasticus to Homo Sanctus: The 12 Steps That Can Change Your Biology

Individual decisions, when multiplied across populations, reshape markets and ultimately policy. The evidence-based 12-step Quick Action Card and 12-day reset plan explained.

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TEDx Talk

Watch: "What Plastic Is Doing to the Human Body"

Dr. Elie R. Haddad delivers a physician's-eye view of the microplastic crisis — covering what the research shows, why it matters now, and what individuals and societies can do in response.

The biology of microplastic exposure
Landmark findings from 2021–2024
Why precautionary action is justified
Practical steps individuals can take today

Elie R. Haddad, MD

"What Plastic Is Doing to the Human Body"

TEDx Talk — Replace video-placeholder div with <iframe> when ready

Frequently Asked Questions

Clear Answers to Common Questions

The honest answer is: the evidence is concerning and growing rapidly, but not yet definitive for most specific health endpoints in humans. What we know: microplastics are present in virtually every human organ studied. The 2024 NEJM study found a significant association between arterial microplastics and cardiovascular events. Animal and cellular studies show inflammatory, endocrine-disrupting, and oxidative stress effects. The precautionary principle applies strongly here — especially given that exposure is ongoing and increasing. Waiting for complete certainty before reducing exposure may mean waiting too long.
Estimates vary, but a widely cited 2019 review estimated that the average adult ingests between 39,000 and 52,000 microplastic particles per year through food and water alone. When airborne inhalation is included, the figure rises to between 74,000 and 121,000. These are conservative estimates — detection and measurement technology has improved significantly since, and real-world numbers may be higher. The "credit card's worth of plastic per week" figure (approximately 5 grams) referenced in media coverage is a rough order-of-magnitude estimate, not a precise measurement.
Multiple studies have found higher microplastic concentrations in bottled water than in tap water — with some studies showing 22× the particle count. The plastic packaging itself is a source of leaching, particularly with temperature changes during shipping and storage. Filtered tap water using a certified carbon block or reverse osmosis system is generally the lower-exposure option. The recommendation from Homo Plasticus is to filter tap water rather than rely on bottled water.
The body eliminates some microplastics — particularly larger particles in the gastrointestinal tract — through normal excretion. However, nanoplastics and very small microplastics can cross biological barriers and accumulate in tissues. Studies have found plastics in organ tissue, blood, placenta, and brain. Whether the body has effective mechanisms for clearing these tissue deposits is not yet well understood. The practical implication: reducing ongoing exposure is more effective than assuming biological elimination will handle the accumulated burden.
Yes, there are several reasons for heightened concern in children. Their developing organ systems and immune responses may be more susceptible to disruption from endocrine-active chemicals associated with plastics. Higher food and water intake relative to body weight means higher per-kilogram exposure. Microplastics in breast milk and polypropylene baby bottles means exposure begins before solid food. Children also have more floor-level contact with household dust, which is a significant reservoir of microplastic fibers. The precautionary principle applies with greatest force for the youngest age groups.
As of 2025, consumer microplastic testing for individuals is not widely available in clinical practice. Research testing methods exist but are expensive, technically complex, and not standardized for clinical use. A small number of commercial labs have begun offering blood or stool testing, but interpretation guidelines and clinical reference ranges do not yet exist. The practical implication is that individual testing is not currently actionable in the way that, say, cholesterol testing is. The more productive focus remains on reducing ongoing exposure — which benefits everyone regardless of individual baseline.
If forced to choose one: filter your drinking water. Drinking water is among the most consistent daily exposure routes, and filtration is a well-validated, cost-effective, and immediately impactful intervention. A quality solid carbon block filter or reverse osmosis system reduces microplastic particle counts in drinking water significantly. The next highest-impact changes are: stop heating food in plastic, replace plastic food storage with glass or stainless, add a laundry microfiber filter, and improve indoor air filtration. These five steps together address the dominant exposure routes for most people.
Not necessarily. BPA (bisphenol A) was replaced in many products with BPS (bisphenol S) and BPF (bisphenol F) — compounds that emerging research suggests exhibit similar or greater endocrine-disrupting activity. This is a well-documented pattern in chemical substitution: when a harmful chemical is regulated out of a product, industry often replaces it with a structurally similar compound with comparable toxicological concerns. "BPA-free" labeling reduces one specific risk while potentially substituting another. The more reliable approach is to minimize plastic contact with food and drink altogether, regardless of BPA labeling.
Yes — this is one of the most concerning areas of current research. Microplastics have been confirmed in human placentas (Ragusa et al., 2021) and amniotic fluid, and nanoplastics have been shown to cross the placental barrier into fetal circulation. Between weeks 8 and 24 of gestation, hormonal pulses guide the formation of reproductive organs and organize the developing brain. Plastic-derived chemicals including phthalates, BPA, and PFAS are endocrine disruptors that can interfere with this process. The practical implication for pregnant women and those planning pregnancy: reduce plastic exposure, especially from heated plastics, plastic food storage, and synthetic personal care products — now, not later.
Homo sanctus — "sacred human" — is the concept introduced in the final chapter of the book as the opposite of Homo plasticus. Where Homo plasticus is shaped unconsciously by the toxic byproducts of modern civilization, Homo sanctus is defined by awareness, conscious choice, and the recognition that safeguarding human health and safeguarding the Earth are the same act. It is not about purity or perfection — it is about remembrance: that the human body is not disposable, that the womb is the first sanctuary, and that every child deserves a future free of invisible poisons. In practical terms, the transition from Homo plasticus to Homo sanctus begins with reducing unnecessary biological burden and evolves into a collective decision to place life above convenience.
In the Media

Interviews, Podcasts & Features

Dr. Haddad speaks and writes for audiences ranging from health professionals to the general public — bringing scientific rigor and communicative clarity to every appearance.

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Media appearances are added as they are confirmed. Contact us for press and interview inquiries.

Free Downloads

Guides & Reference Materials

Concise, physician-reviewed materials you can save, share, and use.

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The 10-Point Plastic Exposure Audit

A quick self-assessment framework for identifying the highest-risk plastic exposure points in your daily routine. Free with newsletter signup.

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The Plastic-Free Grocery Guide

A room-by-room shopping guide for reducing plastic in your food supply — packaging choices, storage alternatives, and label-reading tips.

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Key Research Summary (2020–2024)

A curated summary of the most significant peer-reviewed findings on microplastics and human health published in the last four years.

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The Founder

Elie R. Haddad, MD

"The question is no longer whether plastics are inside us. The question is what we do with that knowledge."

Dr. Elie R. Haddad is a cardiologist and cardiac electrophysiologist with over 20 years of clinical experience. He is a TEDx speaker and the author of Whispers of the Keys. He co-authored Homo Plasticus with Dr. Rudolph Eberwein, a longevity specialist and physician — the two having watched the same alarming patterns emerge across their separate clinical practices.

Together, they founded Homo Plasticus after recognizing that their patients were getting sicker, younger — and that genetics and lifestyle alone could not account for the scale and speed of what they were witnessing. Across disciplines, one factor kept reappearing: plastics.

Dr. Haddad speaks nationally and internationally on microplastics and human health, writes for both professional and public audiences, and believes that education is the most important — and most underused — form of preventive medicine.

For professional inquiries, media requests, or speaking engagements, please use the contact form below.

Work With Dr. Haddad

Speaking, Media & Press Inquiries

Dr. Haddad is available for keynote presentations, media interviews, podcast appearances, institutional consultations, and conference presentations on the science and public health implications of microplastic exposure.

Speaking Topics Include:

  • The State of the Science on Microplastics and Human Health
  • From Environmental Contamination to Medical Crisis
  • Practical Exposure Reduction: What the Evidence Supports
  • The Endocrine Disruption Problem and Plastic Chemistry
  • The Precautionary Principle in Environmental Medicine

Send an Inquiry

Or email directly: media@homoplasticus.com

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