Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific American 60-second science. I'm Aline Ogenbron.

Plastic waste breaks down into ever smaller pieces, becoming tiny enough to waft in the air and flow in the water.

A study published in June found that a person on average inhales or swallows at least 74,000 microscopic particles of plastic each year. And there are multitudes

of minuscule plastic beads and fibers in the environment. So what's the most common type of

microplastic? Recent research finds that, in freshwater at least, it's tiny pieces of artificial

fibers from laundry lint. We were interested in the microbeads and we found them,

but we found microfibers much more prominently.

So 60% of the microplastics that we obtained were actually these microfibers.

Sherry Mason is a chemist specializing in plastic pollution in

freshwater systems at Penn State Barron.

I was surprised, although like you kind of go,

oh, I really shouldn't have been,

because we all clean out our lint filters on our dryers, you know.

So we should be like, oh, of course.

If it's coming off in the dryer, the whole process is starting in the washer.

Synthetic textiles shed non-biodegradable fibers which enter wastewater and travel

beyond. Mason's report is in the publication American Scientist. There are microplastics in the air

...