Study Finds A Staggering Amount Of Plastic In Human Brains
12:13 minutes
It only takes a quick look at our streets and waterways to be reminded that plastic pollution is a big problem. But that’s just the plastic that we can see. An increasing amount of scientific literature points to microplastics accumulating inside our bodies, particularly in organs.
A recent preprint published by the National Institutes of Health found a staggering amount of microplastics in livers, kidneys, and brains of recently deceased cadavers. The brains, however, were the biggest shock: They had 10 to 20 times more microplastics than the other organs studied. Twenty-four of the brain samples measured were found to be about 0.5% plastic by weight.
Joining guest host Maggie Koerth is Tim Revell, executive editor of New Scientist based in London. The two discuss this and other top stories of the week, including a possible explanation for an “alien” radio signal, a look into how orb spiders use fireflies to lure other insects, and a study that says playing video games is good for you, actually.
Further Reading
- Read coverage of past research that identified microplastics in human placentas via The Guardian.
- Explore research about the possible health risks associated with microplastics via The New England Journal of Medicine.
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Segment Transcript
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Meet the Producers and Host
About Kathleen Davis
@katjacquelineKathleen Davis is a producer and fill-in host at Science Friday, which means she spends her weeks researching, writing, editing, and sometimes talking into a microphone. She’s always eager to talk about freshwater lakes and Coney Island diners.
About Maggie Koerth
Maggie Koerth is a science journalist based in Minneapolis, Minnesota.