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, yacult.co.com.j.

That's y-A-K-U-L-T dot-C-O-J-P.

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.

Remember scrolling through the radio dial hoping a tune you liked would pop out of the static?

He never had to listen too long to know you'd landed on a hit.

Music has a very strong, remarkably strong hold on us so that it's enough to be exposed to a very

brief snippet of a familiar song for us to be able to recognize it.

Maria Chait, an auditory cognitive neuroscientist at University College London.

Chate and her team recently studied just how quick that reflex is.

They started by asking 10 volunteers to name a feel-good familiar song like this.

Then the researchers handpicked a second tune that sounded similar but was unfamiliar to the volunteer.

They chopped to the volunteer. They chopped both songs into tiny bits, each less than a second long, and then randomly

interspersed them into a six-and-a-half-minute-long track of song snippets.

As the snippets played, the scientists measured the volunteer's brain activity via a network of 128 electrodes,

and they monitored changes in pupil diameter, too, a sign of arousal.

And the researchers found that the listener's pupils dilated more rapidly when they heard familiar

versus unfamiliar samples within just a tenth to a third of a second.

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