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.

.jp. 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 60-second science. I'm Christopher Ndallata. Got a minute?

If you were to walk into a brick-and-mortar store and they were offering, you know, better prices for less affluent people, there would be a revolt, right?

No one would stand for this.

Christo Wilson, a computer scientist at Northeastern University.

But on the internet, he says,

anything goes when it comes to pricing. It is super subjective. Everything can be personalized.

Wilson and his colleagues analyze just how personal online shopping can get. They compared the search

results of 300 real-world users to searches by cookie-free fake accounts on 16 major e-commerce

sites. Turns out half the sites personalized search results based on who is searching, especially

travel sites. Expedia and Hotels.com prioritized more expensive hotels for certain users,

and price lines skewed search results based on past purchases.

But Wilson's favorite example of variable online pricing was Home Depot.com,

where shoppers on mobile devices tend to be offered much more expensive items.

You know, it's like you want on your desktop and search for a table, and they give you a plastic folding table.

But you search from your phone, and they give you a mahogany dining room table.

The researchers will present their findings on November 6th at the Internet measurement conference in Vancouver. For all you comparison shoppers, here's Wilson's advice on how to beat the bots.

Do the search from your desktop as you normally would.

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