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.p. That's y-A-K-U-Lt.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 Julia Rosen.

Gross domestic product.

The GDP is a simple way to describe the health of big, complicated economies.

And for the last century, the goal of many countries has been to make their GDP go up.

But concentrating only on GDP has had some downsides.

In growing the economy, we have, as an unintended consequence, destroyed parts of nature, which are also important for our well-being.

Stephen Blaskey, an environmental economist at the University of Minnesota.

He and his colleagues have created a new measurement, the gross ecosystem product,

or GEP. So that we actually have metrics that say, how are we doing on ecosystem management,

managing nature, and not just for nature's sake, but how is that coming back and influencing our

own well-being? So really, GEP is trying to say, what is the contribution

of nature to the economy? So in a parallel way to what GDP does in measuring kind of economic

performance. Tallying up the economic value of timber and fisheries is fairly straightforward,

but other benefits of a healthy environment

can be less obvious. Insects pollinate crops. Intact rivers improve water quality and

buffer downstream cities from floods. Thriving ecosystems draw tourists who spend money.

And part of the issue here is that it is difficult to price some of these things. Some people even say, well, they're

...