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.j. That's y-A-K-U-Lt.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

This is Scientific Americans' 60-second Science. I'm Jason Goldman.

By now, it's almost common knowledge that spending time in nature is good for you.

Areas with more trees tend to be less polluted, so spending time there allows you to breathe easier.

Spending time outdoors has been linked with reduced blood pressure and stress and seems to motivate people to exercise more.

So it will come as no surprise that there's research showing that spending time in nature is good.

I mean, that's been known for millennia. There's dozens of papers showing that.

University of Exeter Medical School researcher, Matthew P. White. We get this idea.

Patients are coming to us and they're saying,

well, doctor, how long should I spend?

And the doctor's saying, I don't really know.

So White and his team decided to find out by using data collected from nearly 20,000 people in England

through the Monitor of Engagement with the natural environment survey.

And their answer? Two hours a week. People who spent at least that much time amid nature,

either all at once or totaled over several shorter visits, were more likely to report good

health and psychological well-being than those with no nature exposure.

Remarkably, the researchers found that less than two hours offered no significant benefits.

So what's so special about two hours?

...