Snapshot · Huberman Lab
Postmortem analysis found microplastics and nanoplastics present in every single human testicle that was examined, raising serious concerns about male reproductive health.
Where this was said
At 14:14 · chapter starts 9:38
Postmortem studies show microplastics in every examined tissue. The brain contains ~0.5% plastic by weight [1] — Andrew Huberman "Wherever scientists have looked in human postmortem tissue, they find microplastics and nanoplastics — brain, lungs, liver, testes, follicl…" 09:48 . They cross the blood-brain, blood-testicular, and blood-follicular barriers [2] — Andrew Huberman "Nanoparticles of plastic are small enough to slip through biological barriers like the blood-brain barrier and blood-testicular barrier tha…" 40:00 . Found in placenta and newborn first stool.
Wherever scientists have looked in human postmortem tissue, they find microplastics and nanoplastics — brain, lungs, liver, testes, follicles, placenta, and newborn first stool. The brain alone contains roughly 0.5% of its total weight in plastic particles. No human tissue investigation has returned a negative result.
Postmortem analysis of adult human brains found microplastics and nanoplastics make up approximately 0.5% of total brain weight — roughly a teaspoon of salt's worth.
Commercial plastics like polyethylene and polyurethane were essentially nonexistent before the 1940s; their explosion in manufacturing from the 1950s onward is why microplastics are now everywhere.
Microplastics and nanoplastics have been detected in meconium — the first stool of newborns — confirming that plastic particles cross from mother to fetus.
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