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 yawcp.co.j.jot.com.j, that's y-A-K-U-L-T-C-O.J-P.

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

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

Facebook is currently worth some $400 billion to its shareholders, which might seem like a lot.

But a recent study suggests the company's worth many times more than that to its users.

Basically, our punchline is that Facebook does seem to bring value to its users.

And maybe that's the nicest thing anybody said about Mark Zuckerberg all year, you know, but it does

seem to bring joy or utility to people.

Sean B. Cash is an economist at Tufts University in Boston. He and his team asked some

1,300 Facebook users from colleges, community, and online samples to put a dollar figure on the

value the social network brings to

their lives. Specifically, they asked users how much they'd need to be paid to deactivate their

accounts. And the stakes were real. If a user's offer was accepted, she'd have to deactivate her account

for up to a year. And cash, remember, that's the actual name of the economist, Cash, would have to pony up the money.

We did have some budget-breaking surprises. But just how big of a surprise? Cash and his team found

that on average, users ask for more than $1,000 in exchange for shutting down their accounts for a year.

They reported the results in the journal Plus 1. If you divide Facebook's market capitalization by its number of users, more than 2.2 billion,

you'd find that each user is worth about 175 bucks to investors.

But actual users seem to prize access to the platform at more than five times that.

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