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.

Our microbiomes, the tiny organisms that live on us and in us, can influence our health.

And a recent study looked at microbiome composition and diversity depending on where and how we live.

Given the same latitude and climate across South America,

we found in a gradient of urbanization from jungle houses, hats of American people

living traditional lifestyles, all the way to a modern city like Manaus,

was differences in microbes from our houses and from our skin,

and differences in exposure to chemicals.

Microbiologist Maria Gloria Dominguez Beio from Rutgers University.

She and her colleagues collected samples from people, pets, and spaces in homes,

like the kitchen, bathroom, and bedrooms.

They analyzed bacteria, fungi, parasites, and chemicals.

And they found two trends as you go from the rainforest to a farm to a town to the city of Manouse.

With increasing population density,

we are exposed to a higher diversity of fungi.

We carry more diversity of fungi in our skin, but in our gut we lose microbial diversity.

The study is in the journal Nature Microbiology.

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