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.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 Talata. Got a minute?

Smartphone battery down to 10%? Time to turn down the brightness on the screen, right?

It's a classic strategy to squeeze more juice from the battery, and it works.

But that trick might be less effective than you think.

Because it turns out nearly half the battery drain on a phone

happens when the screen's not even on. So says the study presented at a meeting of the Association

for Computing Machinery in Portland, Oregon. Researchers eavesdropped on the activity of more than

1,500 Android phones, specifically the Samsung Galaxy S3 and S4. And they used an app they developed

called E-Star Energy Saver. The app logs the energy drain of the phone's apps and activities,

as they happen. And you can try out E-Star Energy Saver yourself if you have an Android.

They found that some 45% of the battery drain happened while the screen was off,

and a lot of that energy suck was apps updating in the background, downloading headlines

and weather while you're not actively using them. And different versions of the same app

require different energy supplies. For instance, some versions of the Facebook app were twice as energy thirsty as other versions,

so app version choice could slow your battery drain.

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