The U.S. Government Just Declared War on Microplastics Inside Your Body

What Is STOMP?

STOMP stands for Systematic Targeting Of MicroPlastics. It is the first large-scale federal research program in U.S. history that treats microplastics as a human health crisis — not just an environmental issue. The program is run by ARPA-H (Advanced Research Projects Agency for Health), an agency within the Department of Health and Human Services, and was announced by HHS Secretary Robert F. Kennedy Jr. and EPA Administrator Lee Zeldin at a joint press conference on April 2, 2026.

The $144 million program has a clear three-part mission: measure microplastics inside the human body accurately, target the most harmful types, and remove them.

Why Now? The Government's Own Words

HHS Secretary Kennedy stated plainly: “Americans deserve clear answers about how microplastics in their bodies affect their health. Through ARPA-H's STOMP program, we will measure microplastic exposure, identify sources of risk, and develop targeted solutions to reduce it.”

ARPA-H Director Dr. Alicia Jackson was even more direct: “Microplastics are in every organ we look at — in ourselves and in our children. But we don't know which ones are harmful or how to remove them. Nobody wants unknown particles accumulating in their body. The field is working in the dark. STOMP is turning on the lights.”

Let that sink in. The government is telling you that microplastics are in every organ they examine. Your lungs. Your brain. Your arterial plaques. Your testicles. And they do not yet know the full extent of the damage.

The Two-Phase Plan

Phase 1: Measure and Map

The first phase will develop gold-standard measurement methods — including a clinical blood or tissue test that can quantify your personal microplastic burden. Currently, there is no agreed-upon way to measure microplastics in the human body, and results vary wildly between labs. STOMP will fix this.

Critically, Phase 1 will also produce a risk stratification — ranking plastic types by biological harm. This means scientists will finally answer: which microplastics are the most dangerous, and where should we focus first? The CDC will serve as an independent validator of all measurement methods.

Phase 2: Prevent and Remove

Phase 2 will focus on developing interventions to actually remove microplastics from the body — using approaches from pharmaceutical biology and bioremediation science. Special emphasis will be placed on vulnerable populations: pregnant women, children, people with chronic diseases, and workers with high exposure rates.

EPA's Historic Move: Microplastics on the Contaminant Watchlist

On the same day, the EPA made its own unprecedented announcement: for the first time in the history of the Safe Drinking Water Act's Contaminant Candidate List (CCL), microplastics have been added as a priority contaminant group in the draft Sixth Contaminant Candidate List (CCL 6).

The CCL drives research funding, monitoring requirements, and future regulatory decisions about what is safe in your drinking water. Adding microplastics means the federal government is officially treating them as a substance that may need regulation.

What This Means for You

The U.S. government is spending $144 million because the science is clear enough to be alarming. Consider what we already know:

• Microplastics have been found in 100% of tested human testicles (2024 study)
• PET microplastics detected in human penile tissue — men with erectile dysfunction had higher burden (2026 Cell Press)
• Microplastics found in human semen — 34 out of 45 samples in a 2025 study
• Microplastics in lungs, brain, arterial plaques, ovarian follicular fluid, and placental tissue
• PET — the same plastic in your synthetic underwear — is the dominant microplastic in penile tissue

Your Underwear Is a Primary Exposure Source

While the government works on measuring and removing microplastics over the coming years, you can take immediate action today. One of the most direct, controllable sources of microplastic exposure is what you wear against your skin.

Polyester is PET — the same plastic the government is now spending $144 million to study and remove from your organs. When you wear polyester underwear, friction, heat, and moisture cause microplastic shedding directly onto your genital skin. The genital area has high vascularity and permeable mucosal tissues, meaning it absorbs chemicals and particles more efficiently than other skin areas.

The 1992 Shafik study demonstrated that prolonged polyester contact with the scrotum could suppress sperm production to the point of azoospermia (zero sperm count) — an effect attributed to electrostatic charges and altered thermoregulation. This was reversible upon removal of the polyester.

The Simplest Swap You Can Make Today

The government will take years to develop removal technologies. You do not have to wait. The single easiest thing you can do right now:

Key Takeaways

1. The U.S. government now officially recognizes microplastics as a human health crisis — not just environmental pollution
2. $144 million committed to measure, map, and remove microplastics from the human body
3. EPA added microplastics to drinking water contaminant watchlist for the first time
4. Microplastics confirmed in testicles, semen, penile tissue, lungs, brain, and arteries
5. PET (polyester) is the dominant plastic in penile tissue — the same material in synthetic underwear
6. You can take action now: switch from polyester to 100% cotton underwear
7. IcedBallz = 100% cotton + active cooling for sauna protection. Zero PET.