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 Yacolt.

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

Dating apps like Bumble and Tinder can help singles couple up. But online dating, it's also great for scientists.

There's so much folk wisdom about dating and very little hard evidence.

Elizabeth Brooke is a computational social scientist at the University of

Michigan. She recently used online dating data to answer this question. What does it mean for someone

to be out of your league? And is there a way that we can study that using the techniques of network

science? Brooke and her colleague Mark Newman studied who swapped messages with whom on a popular

online dating platform

in the month of January 2014. They categorize users by desirability using page rank, one of the

algorithms behind search technology. Essentially, if you receive a dozen messages from desirable users,

you must be more desirable than someone who receives the same number of messages

from average users.

And then they asked, how far out of their league do online daters tend to go when pursuing a partner?

I think people are optimistic, realists.

In other words, they found that both men and women tended to pursue mates just 25% more desirable

than themselves.

So they're being optimistic, but they're also taking into account their own relative position within this overall desirability hierarchy.

...