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 yawcot.co.j.j, that's y-A-K-U-L-T-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.

Exercise and healthful eating are linked to better health, and so is having a decent circle of friends.

Now it looks like that link between friends and better health. It's true for the major online social network, too, Facebook.

Researchers compared the health records of 12 million Facebook users to non-users

in California. After controlling for things like age, race, and gender, they found that being on

Facebook was associated with a slightly lower risk of death in a given year. Now, some of that

could be explained by the fact that Facebook users might be more affluent or have better access to

health care. So the researchers did a second analysis by looking only at Facebook and non-Facebook

users on the California voter rolls, which is a sort of proxy control for socioeconomic status.

And the association still held up, the studies and the proceedings of the National Academy of Sciences.

Of course, correlation does not equal causation.

Posting more photos, it's not going to increase your lifespan.

But the takeaway here is that in some cases, like when people tag you in their photos,

that online world can reflect real world ties. Interactions on Facebook are thus reflective

of your actual human relationships and might even reinforce them, which certainly seems like

a thumbs up. Thanks for listening. For Scientific American 60 Second Science, I'm Christopher

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