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Bruce Lanphear

@blanphear.bsky.social

83 followers 35 following 40 posts

For over 30 years, I’ve been studying how invisible poisons—lead, air pollution, fluoride, pesticides—damage human health. I’ve helped shape policies, raise alarms, and remind people that when it comes to toxic chemicals, no dose is safe.

Posts Replies Media

Bruce Lanphear @blanphear.bsky.social · 24/02/2026

The Unfinished Revolution in Medicine Virchow transformed medicine by locating disease within the cell. But what if that breakthrough also narrowed our vision? In Virchow’s Blind Spot, I argue that modern medicine may still be overlooking the environments driving today’s epidemics.

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The Unfinished Revolution in Medicine

We perfected cellular biology—and forgot to ask what’s damaging the cells.

Bruce Lanphear @blanphear.bsky.social · 10/02/2026

We Trust the Bones, But Not the Bodies When an exposure is widespread, persistent, and involuntary—and when studies repeatedly point in the same direction—waiting for perfect certainty is not scientific rigor. It is a policy decision. And history suggests it is usually the wrong one.

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We Trust the Bones, But Not the Bodies

Why environmental health is held to a higher—and deadlier—standard of proof

Bruce Lanphear @blanphear.bsky.social · 08/02/2026

What If 600 Quadrillion Is Just the Beginning? Plastic pollution feels uncomfortably similar. We are measuring what our tools can detect, drawing comfort from low numbers, and largely missing the smallest particles most likely to matter.

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What If 600 Quadrillion Is Just the Beginning?

The smallest airborne plastics evade measurement—and carry the biggest risks

Bruce Lanphear @blanphear.bsky.social · 27/01/2026

A Sign in the Window Mark Carney’s speech in Davos struck a chord for me—not only for what it said about geopolitics, but because it reminded me what Václav Havel can teach us about toxic chemicals, regulation, and public health.

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A Sign in the Window

What Václav Havel can teach us about toxic chemicals and public health

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Bruce Lanphear @blanphear.bsky.social · 01/01/2026

Join the discussion about public health, the environment, and what really drives disease. With a subscription, you’ll receive two short essays each week—and an open invitation to add your voice. Free, no paywall. blanphear.substack.com

Bruce Lanphear @blanphear.bsky.social · 30/12/2025

The Long Poisoning Despite decades of evidence, only a small number of chemicals have ever been truly banned in the United States. This is a failure of governance—a regulatory system designed to tolerate harm until it becomes undeniable, rather than prevent it when the evidence first appears.

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The Long Poisoning

When Regulatory Delay becomes State-Sanctioned Suffering

Bruce Lanphear @blanphear.bsky.social · 09/12/2025

The Plume Across the River Walking in St. Louis in 1969, a curious scientist noticed something uncanny: whole blocks of plants looked stricken. Leaves curled like closing hands, stems twisted, and redbuds and forsythias seemed frozen mid-grimace. It wasn’t random. It was directional—a warning.

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The Plume Across the River

A faint chemical trail, a damaged landscape, and the mystery St. Louis overlooked

Bruce Lanphear @blanphear.bsky.social · 25/11/2025

The Quiet Chemistry of Childhood When you put all this together, the picture becomes clearer: one side of the ledger—the benefits—is thinner than we’ve long assumed. The other side—the risks—is thicker than many expected.

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The Quiet Chemistry of Childhood

Every few months, a new fluoride study drops—another twist in a debate that has stretched across generations.

Bruce Lanphear @blanphear.bsky.social · 18/11/2025

The Unfinished Phase-Out of Leaded Fuel How did the United States allow leaded aviation fuel to persist for so long when its harms were so clear? Why did it take until 2023—50 years after the phase-out of leaded car fuel began—for EPA to determine that leaded avgas poses a danger to public health?

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Fly the Leaded Skies

Why Aviation Fuel Still Poisons Our Communities

Bruce Lanphear @blanphear.bsky.social · 11/11/2025

The Smallest Victims of Arsenic At lower doses, arsenic works slowly, quietly increasing the risk of lung cancer, diabetes, and heart disease. These aren’t rare outcomes; they touch nearly every family, often without anyone realizing that a poison in the water may have helped set them in motion.

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The Smallest Victims of Arsenic

How a Poison in Our Water Reveals a Missed Opportunity

Bruce Lanphear @blanphear.bsky.social · 04/11/2025

Sweet Deception: The Framing of Fluoride The Kellogg Foundation held a controlling share of Kellogg Company stock. Throughout the mid-20th century, Kellogg’s commercial success—and thus the Foundation’s endowment—depended heavily on the sale of sugar-sweetened breakfast cereals.

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Sweet Deception: The Framing of Fluoride

How the Kellogg Foundation helped turn a dietary crisis into a chemical solution.

Bruce Lanphear @blanphear.bsky.social · 20/10/2025

For 50 years, heart disease has killed more Americans than anything else. Our film traces how a pervasive toxic element—quietly woven into daily life—helped drive a national epidemic, and how pulling that toxic element back helped save hundreds of millions of lives.

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The Toxic Truth Behind Heart Attacks

How the Auto Industry Fueled the Heart Disease Epidemic

Bruce Lanphear @blanphear.bsky.social · 30/09/2025

In the 1940s, the sugar industry faced a crisis. Research was mounting that sugar was driving the epidemic of tooth decay, but reducing sugar consumption was unthinkable for an industry built on sales. So industry leaders pulled off a sleight of hand worthy of Big Tobacco.

How Big Sugar pushed fluoride — new study alleges a century of spin

The sugar industry and companies that make sweet drinks and foods have spent nearly a century downplaying sugar’s role in health problems and distorting the science around fluoride — and the practice ...

Bruce Lanphear @blanphear.bsky.social · 30/09/2025

The Fluoride Experiment For decades, Americans have been told that adding fluoride to our drinking water prevents tooth decay. But what if there’s another side to the story—one that involves corporate money, manipulated science, and a policy that may be doing more harm than good?

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THE FLUORIDE EXPERIMENT

How the Sugar Industry Used Fluoridation as a Smokescreen

Bruce Lanphear @blanphear.bsky.social · 16/09/2025

Breakthroughs in Medicine We often think of medical breakthroughs as new drugs, devices, or diagnostic tests—things we can hold, prescribe, or patent. But revolutions in medicine often begin not with a new molecule, but with a new mindset. It’s not just what we see; it’s how we see it.

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Breakthroughs in Medicine

Seeing the World through an Environmental Lens

Bruce Lanphear @blanphear.bsky.social · 09/09/2025

The Science of Delay The lesson of PFAS is the same lesson we should have learned from lead, asbestos, and air pollution: if we wait until the evidence is definitive, we’ve waited too long.

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The Science of Delay

Why we wait until millions are harmed by toxic chemicals before we act

Bruce Lanphear @blanphear.bsky.social · 02/09/2025

Which Side Are You On? The line I draw is with scientists who pretend to be independent while secretly cashing checks from the industries they defend. They don’t just betray themselves—they corrode trust in science itself.

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Which Side Are You On?

Finding Common Ground in an Age of Tribalism

Bruce Lanphear @blanphear.bsky.social · 26/08/2025

The Chronicles of Lead Toxicity We know what is typical in a world saturated with lead. But true normal—of health, behavior, intelligence—may have slipped away long ago, buried in the layers of ice, etched into tree rings, and written in our bones.

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The Chronicles of Lead Toxicity

A History Cast in Fire, Frozen in Ice

Bruce Lanphear @blanphear.bsky.social · 23/08/2025

A Thousand Thanks One of the unexpected thrills of Substack has been the conversations it sparks. Some of you write thoughtful comments, others send quiet emails, and some simply open and read each post. All of it matters. Writing can be solitary, but this space has never felt lonely.

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A Thousand Thanks

Six months, 1000 readers and a community that matters

Reposted by Bruce Lanphear

Eric Topol @erictopol.bsky.social · 17/08/2025

Things you might not know about chronic, low-level lead exposure and heart disease, including the lead-estrogen hypothesis "In 2019, a total of 5.5 million deaths from cardiovascular disease were attributed to lead exposure" Learn from @blanphear.bsky.social erictopol.substack.com/p/is-chronic...

erictopol.substack.com

Chronic Lead Exposure, a Risk Factor for Heart Disease

Plus: My Recommendations for Reducing Risk of Heart Disease

Bruce Lanphear @blanphear.bsky.social · 19/08/2025

When science that threatens powerful interests is ignored, the public notices—even if they don’t know the details. The irony is that ignoring inconvenient science doesn’t just harm public health—it erodes the very trust needed to mobilize public health measures in the future.

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“Follow the Science”— or Just the Convenient Parts?

We Keep Ignoring the Warnings at the Cost of Lives—and Trust

Reposted by Bruce Lanphear

PSGRNZ @psgrnz.bsky.social · 16/08/2025

🔥HUGE 🔥🔥 interview with @blanphear.bsky.social public health physician & paediatric epidemiologist. Chemical Exposures & the Toxic Risks. Making Sense of Science, Public Health, & Economic Benefit. #DoHaD #lead #pesticides #fluoride #pollution #babies #brains www.youtube.com/watch?v=VgB9...

Bruce Lanphear Chemical Exposures & Risks. Making Sense of Science, Public Health & Economic Benefit

YouTube video by Physicians & Scientists for Global Responsibility

Bruce Lanphear @blanphear.bsky.social · 16/08/2025

Industry loves to say, ‘The dose makes the poison.’ But what if that’s a lie that’s been poisoning policy for decades?

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Industry loves to say, ‘The dose makes the poison.’ But what if that’s a lie that’s been poisoning policy for decades?

Ken Cook talks with Dr. Bruce Lanphear about how a 500-year-old mantra still shields polluters—and why tiny doses can cause massive harm."

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Bruce Lanphear @blanphear.bsky.social · 14/08/2025

Bruce talks with EWG's Ken Cook to take apart the lingering myth that “the dose makes the poison” – a chemical industry claim that there can be safe levels of toxic exposure. www.youtube.com/watch?v=zIGF...

EWG's Ken Cook interviews Dr. Bruce Lanphear

YouTube video by Plagues, Pollution & Poverty

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Bruce Lanphear @blanphear.bsky.social · 12/08/2025

The ADHD Epidemic We Choose to Ignore We found that 8.7% of children had ADHD in a national study. That was striking enough. We also attributed one in three cases of ADHD in US children to two toxic chemicals. These weren’t obscure exposures, this was everyday life in America.

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The ADHD Epidemic We Choose to Ignore

A Preventable Epidemic of Staggering Proportions

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Bruce Lanphear @blanphear.bsky.social · 12/08/2025

I thoroughly enjoyed my conversation with Ken Cook of EWG. Few people have done more to expose the dangers of toxic chemicals. We dug into the old adage “the dose makes the poison”—and why it doesn’t always hold up. Please listen while you walk around the park or enjoy a beverage before dinner.

Reposted by Bruce Lanphear

Ken Cook @ewgprez.bsky.social · 12/08/2025

EWG scientists work to identify potential health harms from chemical exposure in everyday products so that consumers can make safer choices—and to debunk the myth that “the dose makes the poison.” Dr. Bruce Lanphear and I discuss why even low-level exposures can be harmful. @blanphear.bsky.social

“The dose makes the poison” is outdated

YouTube video by Environmental Working Group (EWG)

Bruce Lanphear @blanphear.bsky.social · 07/08/2025

I won't be able to attend Indivisible Georgia Coalition's event, “Rally: Sound Science Saves Lives” in Atlanta, Goergia—but I wholeheartedly support it.

Rally: Sound Science Saves Lives · Mobilize

Science and public research are under attack in this country. Indiscriminate cuts to federal research agencies and political interference are causing research studies to be paused, programs halted, an...

Bruce Lanphear @blanphear.bsky.social · 05/08/2025

THE CANCER EXPRESS They are not going to New Delhi to visit family or conduct business. They are going to the All India Institute of Medical Sciences—to be treated for cancer. This train has a name. The locals call it the Cancer Express.

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THE CANCER EXPRESS

The Hidden Cost of India’s Green Revolution

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Bruce Lanphear @blanphear.bsky.social · 24/06/2025

The Most Honorable Kind of Work The most honorable contributions are those offered without the expectation of recognition, status, or repayment. They are made for the sake of truth, justice, or human progress—regardless of whether anyone notices.

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The Most Honorable Kind of Work

On legacy, humility, and the quiet power of doing good work

Bruce Lanphear @blanphear.bsky.social · 21/06/2025

Lead by Mary Oliver Here is a story to break your heart. Are you willing?

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Lead by Mary Oliver

Here is a story to break your heart. Are you willing?

Bruce Lanphear @blanphear.bsky.social · 17/06/2025

We need a story that reminds us our lives are stitched to the soil, the air, and the water—that every breath, every bite, every sip binds us to the earth and to one another.

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The Smelter Next Door

How Stories Brings Science to Life

Bruce Lanphear @blanphear.bsky.social · 23/05/2025

Confessions of a Toxicologist I am guilty.

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Confessions of a Toxicologist

Complicity isn't just institutional. It's personal, too. This is a reckoning—not just for one toxicologist, but for any of us who've waited to act or speak out.

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Bruce Lanphear @blanphear.bsky.social · 13/05/2025

Ancestral Redundancy Genealogy changed how I move through the world. I can’t go a day without reading about or meeting someone whose surname appears in the last 10 generations of my ancestry, a constant reminder of how connected we all are.

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Ancestral Redundancy

The Tangled Branches of Our Family Trees

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Bruce Lanphear @blanphear.bsky.social · 30/04/2025

Toxic Toys and the Death of Oversight The people who work in public health agencies are the last line of defense between you and a very dangerous kind of freedom. The freedom to sell anything, no matter how toxic. The freedom to ignore evidence. The freedom to look the other way.

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Toxic Toys and the Death of Oversight

A Compelling Case for Stronger Public Health

Bruce Lanphear @blanphear.bsky.social · 24/04/2025

What the New York Times Keeps Missing If the cause is framed as genetic or behavioral, the solution stays in the clinic. But if the cause includes toxic chemicals, prevention becomes possible.

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What the New York Times Keeps Missing

And Why it Matters More Than Ever

Bruce Lanphear @blanphear.bsky.social · 19/04/2025

All Work is Sacred, but it Shouldn’t Come with a Death Sentence.

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All Work is Sacred, but it Shouldn’t Come with a Death Sentence.

You're Gonna Miss NIOSH When It's Gone

Bruce Lanphear @blanphear.bsky.social · 12/04/2025

These deaths aren’t random. They’re regulatory failures. They are, quite literally, collateral damage.

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Collateral Damage

The Hidden Cost of Living in a Toxic World

Bruce Lanphear @blanphear.bsky.social · 12/04/2025

Why do we invest against our own best, long-term interests?

Bruce Lanphear @blanphear.bsky.social · 12/04/2025

Genes feel safe—impersonal, fixed, beyond our control. The environment is messier. It forces us to ask harder questions about responsibility. It leads us to industry practices, weak regulations, and who should be held accountable.

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Rethinking Autism’s Origins

Beyond the Genome

Bruce Lanphear @blanphear.bsky.social · 02/04/2025

How Estrogen Keeps Lead—and Heart Attacks—in Check

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How Estrogen Keeps Lead—and Heart Attacks—in Check

For over a century, coronary heart disease has ruled the global charts as the leading cause of death.

Reposted by Bruce Lanphear

Dr. Sandra Steingraber 🏳️‍🌈 @ssteingraber1.bsky.social · 27/03/2025

Seems like a good moment to re-up this 2010 banger of a poem. Should be read out loud. To yourself. “Questionnaire” by Wendell Berry: