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.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 60-second science.

I'm Christopher in Dallata. Got a minute?

I'm running over the Williamsburg Bridge in New York City.

It connects Brooklyn to downtown Manhattan.

It's one of my favorite places to run, because the views are great.

Until you look at all the taxis and trucks, spewing exhaust,

always makes me wonder,

is all that pollution essentially undoing any health boost I'm getting from the run?

A new study of more than 50,000 Danish adults suggests I might be okay.

Of course, being Denmark, more than two-thirds of them regularly rode a bike, and half played sports.

As you might expect, both activities lowered the Danes risk of death during the 17-year study period.

But that effect held true even for Danes exercising in the most polluted parts of Copenhagen,

suggesting that the short-term heavy intake of pollutants during exercise is just a small proportion of their overall exposure to pollution, and thus does not diminish the benefits of exercise.

The results are in the journal Environmental Health Perspectives.

Of course, Copenhagen has pretty clean air, even by European standards.

So these results might not translate to, say, Beijing.

And the researchers still advise exercising in green spaces, parks, and other road-free areas, if possible.

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