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, visitacolkot.co.j.j.

That's y-A-K-U-L-T dot-C-O-J-P.

When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science.

I'm Christopher in Taliatta.

Health care isn't just a benefit of the modern human age.

It goes way back, all the way even, to the Neanderthals.

We imagine that they will have been cleaning wounds, dressing wounds.

Penny Spikins, a Paleolithic archaeologist at the University of York in the UK.

They may have used things like splints when you've got sort of broken limbs.

We know they had some forms of painkillers.

And they most likely needed them, because remains of Neanderthals show that most individuals

seem to have suffered a serious injury at least once.

The key detail being that those injuries didn't always kill them.

Spike and Zinnertim cataloged more than 30 cases of Neanderthals who'd been injured but didn't

die of their wounds to investigate the pattern of health care in pre-modern humans. And they concluded

that health care may have been key to Neanderthals colonizing extreme environments and pursuing dangerous prey like mammoths and woolly rhinos.

Healthcare wasn't just something cultural for Neanderthals.

It also performed an ecological function.

...