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.

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

This is Scientific American 60-second science. I'm Christopher Nthalata. Got a minute?

You've probably noticed that synthetic t-shirts stink more after a workout compared to cotton.

But hey, it's not the fabrics fault. It's the microbes that hang out on synthetics that create that characteristic stench.

That's according to a study in the journal applied in environmental microbiology.

26 volunteers, half men, half women, worked out on spinning bikes for an hour,

and they did so outfitted with shirts of cotton, polyester, or a cotton synthetic blend.

Then researchers stuffed the sweaty shirts into plastic bags.

The next day, a train panel sniffed

them, raiding their funk. Unlucky job, because yes, the polyester shirts were indeed more musty,

sour, and ammonia-like than the cotton. DNA analysis revealed that micro-cockus bacteria were to blame.

They aren't actually all that common in the armpit itself,

and they don't flock to cotton. But researchers say they thrive on the open-air lattice of synthetic

fibers, where they sit chomping on the long-chain fatty acids in our sweat, turning them into

shorter, stinkier molecules. These findings might just explain one of the most vexing questions of adolescence.

Why do stinky shirts smell so unpleasantly different from the body odor in the armpits

themselves?

Could be because your favorite shirt has a microbiome of its own.

...