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 Yacult.

This is Scientific Americans' 60-second science. I'm Steve Merski. Got a minute?

So in Beyond the Lights Switch 1 and 2, we kind of looked at the nation's energy mix.

What our energy options are for producing electricity going forward.

David Beello. He's the Energy and Environment editor at Scientific American and host of the Beyond the Lights Switch series produced by Detroit Public Television and aired nationally on PBS.

The original episodes aired back in 2012.

Now in the new episode, Beyond the Light Switch 3, if you will, we're looking at what it would mean if the U.S. went more electric.

One of the ideas for cutting down on greenhouse gas emissions and air pollution and a lot of the other problems we have

with fossil fuels is to get rid of internal combustion engines and replace them with electric cars.

To have electric cars, you need better batteries, and we explore what the options are for getting those better batteries.

We also look at what better batteries might do for soldiers.

I spoke with soldiers who served in Iraq, basically guarding fuel convoys, which was the most dangerous job.

A significant chunk of our casualties came from these fuel convoys, which were like really rolling bombs.

So those are the kinds of things we're looking at in this episode.

And what that might mean for the American home in the suburbs.

We visit this kind of innovative suburban experiment, really, in Texas outside of Austin.

It's called the Miller neighborhood.

And basically, most of the people there have photovoltaics.

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