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-L-T.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 Talata. Got a minute?

You might blame your pets for shedding all over the house, but we humans do it too, and our stuff is alive.

We're constantly emitting microbes around us, and this is coming from shedding of our skin, from exhaling, you know, our hair, and we're just full of

these guys.

Adam Altrichter, a microbial ecologist at the University of Oregon.

We've never been sterile organisms. We are definitely masses of microbes, both in and on us.

If you're picturing the Peanets character Pigpen, you may not be far off,

because biologists estimate we shed a million particles an hour,

including, of course, a lot of bacteria.

Altrickter and his colleagues wanted to measure that cloud of particles,

the Pigpen effect, if you will.

So they asked 11 volunteers not to shower, dressed them in shorts and tank tops,

and put them in a sterile chamber for hours at a time, while collecting microbial samples on surfaces and in the air.

What they found in those samples was a menagerie of bacteria, from the volunteers' skin, guts, genital tracks, lungs, noses, and mouths.

And for eight of the 11 study subjects, the microbial cloud was unique enough to identify

the individual who'd left it, suggesting that this bacterial fingerprint could someday be

used in forensics. The study is in the journal Pier J. Given that we spend 90% of our lives indoors, our microbial

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