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 dot-C-O-J-P.

When it comes to a guide for your gut, count on YacL.

This is Scientific American 60 Second Science. I'm Suzanne Bard.

I thought you were downstairs boxing chocolates. Oh, they kicked me out of there. I kept pinching them to see what kind they were.

Laugh tracks and television shows like I Love Lucy have been encouraging us to chuckle since the 1950s.

But they originated even before that with old radio shows.

If you just put out a comedy program on the radio,

people didn't necessarily realize it was supposed to be funny.

So they started recording them with a live audience

because then people had all the cues that they would get

if they were at the theatre, say, of an audience response.

And indeed, laughter can be

highly contagious. Sophie Scott is a cognitive neuroscientist at University College London. She

and her team wondered whether adding laughter to a joke could also make it seem funnier. So they

scoured the internet for the most groan-worthy jokes they could find and enlisted the help of a professional comedian to record them.

So things like what's the best day for cooking? Friday.

How does a dinosaur pay its bills using Tyrannosaurus checks, that kind of thing?

And then we got people to rate how funny they were without any laughter added.

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