Why Humans Smile at Each Other - Did You Know

What this episode covers

In this episode of Did You Know?, Jody Colvard talks about something so simple, so natural, that you may not even notice when you do it. You smile, and strangers smile back. A baby smiles at you and suddenly your whole nervous system softens.But… why?Why do humans smile at each other?And why does something as small as a curve of the lips feel like a spark of connection?

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Frequently Asked Questions

How long is this episode of Did You Know?

This episode is 6 minutes long.

When was this Did You Know episode published?

This episode was published on November 28, 2025.

What is this episode about?

In this episode of Did You Know?, Jody Colvard talks about something so simple, so natural, that you may not even notice when you do it. You smile, and strangers smile back. A baby smiles at you and suddenly your whole nervous system softens.But…...

Can I download this Did You Know episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.