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, yacult.co.com.j.

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

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

So the apothecaries founded this space

as somewhere where they could train their students

in how to identify medicinal plants from harmful plants, plants that can kill and cure, so to speak.

In London's neighbourhood of Chelsea, next to the River Tham and enclosed by a tall brick wall,

is a collection of poisonous plants that can kill you.

There are also plants that can treat you when you're sick,

and even plants that many of our modern medicines are derived from.

I'm Shayla Love, and you're listening to Scientific American Science Quickly.

Today, we're paying a visit to the Chelsea Physic Garden,

one of the oldest botanical gardens in Europe with

four acres dedicated to the ancient science of healing. When I first walk inside, it looks like a typical

garden. There's a gravel path that crunches under my feet and twists and turns through crowded

plant beds. But after glancing at the map, it becomes clear I'm in a

different kind of garden. On my right is a poison bed, where the plant signs also include a skull

and crossbones. Maybe we can go to the poisonous plants, because I feel like that's probably a big

draw. Yeah. You don't see that often in botanical gardens. That's adjacent to the garden of useful plants,

...