How Smiling Triggers Dopamine in the Brain

The anatomy of a happy dance

Chapter 1

The chemistry of a smile

Chapter 2

The rhythm of the happy dance

Chapter 3

The internal symphony

Chapter 4

Vocalizing the vibe

YOUR GOAL

Master of The anatomy of a happy dance

Ch 1 · The chemistry of a smile

joy The human face displays involuntary micro-expressions of genuine delight

joy The Chemistry of a Smile

Just a little cheek flex sends a sweet rush of dopamine straight to your brain!

How we signal goodwill is shaped by the social landscape we navigate.

joy Guillaume Duchenne and the anatomy of a genuine smile

The micro-expressions of delight

joy An anatomical chart highlights involuntary muscle movements signaling delight across the body.

Tears of joy as emotional balance

joy Tears of joy glisten on a smiling face in warm morning light.

The Giggle Formula

BETA

joy Match physical reactions to discover how the human body expresses different forms of joy.

Fun Fact

The Duchenne smile: It is named after a French doctor who used electrical shocks on faces to map muscles.

Glossary

dopamine (noun)
A neurotransmitter in the brain that plays a major role in regulating movement, emotion, and pleasure. In 1957, Swedish pharmacologist Arvid Carlsson discovered this chemical, which floods the brain when a person smiles.

Gossip

Which smile feels most rewarding to receive?

Quiz

How long does a typical facial micro-expression of joy last on the human face?

Genuine feeling leaves marks that conscious effort cannot replicate.

joy How the brain uses tears of joy to restore emotional balance

Quiz

What is the term for a negative reaction to a highly positive emotional event, like crying when happy?

Our truest feelings escape us before we have time to hide them.

joy Cultural display rules shape how people smile across different countries.

Quiz

Which pioneer of micro-expression research discovered that basic human expressions of joy are universally recognized?

We regulate overwhelming emotions by expressing their physical opposites.

Quiz

What is the physiological purpose of crying "tears of joy" during overwhelming moments?

Quiz

Which muscle is responsible for crinkling the corners of your eyes during a genuine smile?