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Welcome to a Monday edition of Cool Stuff Daily, a President's Day edition, if you're listening

in the United States. Coming up, scientists have identified a singular bacteria strain

present in healthy people, and not so much in unhealthy people. What are the implications?

We've got the story coming up, starting right now. Turning now to Science Daily, a large international study led by researchers at the University

of Cambridge has identified a little-known group of gut bacteria that appears far more

often in healthy people.

The group called CAG-170 was consistently found at higher levels in individuals without chronic illness.

CAG-170 is known only through its genetic signature.

Scientists have not been able to grow most of these bacteria in the lab, which has made them difficult to study directly.

Using advanced computational techniques, the team searched for

CAG-170s genetic fingerprint in gut microbiome samples from more than 11,000 people across 39

countries. The pattern was clear. Healthy individuals had more of these bacteria than people

with conditions such as inflammatory bowel disease,

obesity, and chronic fatigue syndrome. Further genetic analysis showed that CAG-170 has the ability

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