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.

Ever since I was a kid, I wanted a dog. But it wasn't until I was an adult, newly laid off and missing a beloved cat that had passed more than a year earlier, that my husband and I adopted a one-year-old mutt named Jack.

Jack is a classic shade of brown, but a cartoonish mixture of a pit bull's head and musly chest and some unknown breed's short little legs.

Our best guess is corky. Sometimes when he sneezes, his head loudly and hilariously knocks against the floor.

In the six years we've had him, Jack has come with his share of challenges.

He is an incorrigible stealer of tissues and loses his mind when the doorbell rings. But he is an expert cuddler and loves every single person he has ever met.

He is silly and playful.

Having Jack has helped us meet so many more of our neighbors,

get much more regular exercise walking him rain or shine,

and helped us teach our toddler about respecting the space and bodies of other beings.

But it's also meant that I've wanted to learn more about Jack

and the relationship we have with our dogs.

This is Science Quickly.

I'm Andrea Thompson, Scientific Americans News Editor for Earth and Environment,

and sometimes fun animal science.

Today we're speaking with University of Maryland computer scientist and famed internet dog mom of a pack of golden retrievers, Jen Goldbeck, about her new book, The Purist Bond,

Understanding the Human Canine Connection, written with science writer Stacey Colino.

It delved into the science of how we humans relate to our puppy pals and the many ways they improve our lives.

...