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.j. That's Y-A-K-U-Lt.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Immigrants to the U.S. might lose touch with certain customs and traditions back home.

But here's something else they lose.

Their microbes.

When they came to the U.S., almost immediately they began losing their native microbes.

Dan Nights, a computational biologist at the University of

Minnesota. And over time, the balance shifted to the point where they were dominated by the U.S.

associated microbes. He's referring to first and second generation immigrant women from the

Hmong and Karin ethnic minorities in Southeast Asia. His team sequenced the

DNA found in their feces, and they saw that there was an immediate decline in the number and

diversity of gut microbes among the immigrants, compared to their counterparts still living back home.

And the decline continued over time. Now, if you're thinking, well, maybe the women just switched

up their diets, started eating more hamburgers, if you're thinking, well, maybe the women just switched up their diets,

started eating more hamburgers, more bacon and eggs, dietary surveys, don't bear that out.

The women weren't changing their diets nearly fast enough to explain the drop in diversity.

So it seems as though there's something else going on that has to do with the U.S. lifestyle, antibiotics could be

playing a role. The water supply could be playing a role. It could be other aspects of lifestyle,

...