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 Yacolt.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Used to be, teenage kids had to carry around a bag of flour,

wrapped in a blanket to learn their responsibilities of parenthood.

But these days, the same lessons taught with high-tech dolls

that cry and record every interaction.

They get crumpy, you have to rock them to calm them down.

They have to be fed.

Sally Brinkman, an epidemiologist at the Telethon Kids Institute in Australia.

It's supposed to be so tiring and so difficult that it puts them off and they say, oh, no,

I don't want to be a teenage mum. And then they think about contraception and all of those sorts of things.

Problem is that theory that the dolls will discourage teenage parenthood doesn't seem to be true,

according to a new study by Brinkman and her colleagues.

The team recruited nearly 3,013-15-old girls for the trial, from 57 schools in Western

Australia.

All the girls got the standard Australian curriculum on contraception and sexual health,

but half had to care for the infant dolls and got extra education sessions with the school nurse.

The team's hypothesis...

...