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 in Dalyata. Got a minute?

Unless you have a pair of noise-canceling headphones, flying can be annoying to the ears.

A lot of low-pitched rumbling makes it into the cabin. Problem is, the wings, floors, ceilings, and bulkheads are lined with a lightweight material

with a honeycomb structure, which adds structural integrity to the aircraft, but engine and

airflow sound cuts right through.

The physical law says that the lighter the material is, the worst it could block the sound.

U.N. Jeng is an acoustician at North Carolina State University.

In a quest for quiet, he and his colleagues constructed a similar material,

but with a quarter-millimeter thin layer of latex stretched across the cells of the honeycomb.

In tests, the latex lace structure cut the intensity of low-frequency rumbling

to a thousandth of its previous level.

Enough, he says, to make an airplane cabin sound more like a peaceful living room.

The studies in the journal applied physics letters.

Problem is, the material Jing developed is 6% heavier than the standard stuff,

and more weight means more fuel, means more expense.

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