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.

Yachtold 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 Yacult.

This is Scientific Americans' 60-second science. I'm Karen Hopkin.

The microbes in our intestines help keep us healthy, strengthening our immune systems and promoting metabolism.

But they may also give us a leg up when it comes to moving our legs up and down again, rapidly and repeatedly.

Because a new study finds that mice that are fed bacteria isolated from elite athletes

log more time on the treadmill than other mice that are treated only to bacteria found in yogurt.

The results appear in the journal, Nature Medicine.

Alexander Kostick, a microbiologist at Harvard Medical School,

was initially interested in how the gut microbes of people with diabetes might differ from folks without the condition.

The idea being that tweaking the microbiome might help to treat the disease.

But the question of enhancing overall health and fitness can also come from the other direction.

But here the question was more, what's unique in the microbiome of someone who is

supremely healthy? And can we use that feature of the microbiome to transfer into other people

to potentially make them healthier? And a handy window into the gut is poop.

So Kostick and his crew asked 15 runners who completed the Boston Marathon in 2015

to provide daily stool samples from a week before the race to a week after.

They also collected samples from 10 people who were decidedly more sedentary,

and they tallied the bacteria present

...