By 
Kang Lee
 | 
TED Stage Talk

Can you really tell if a kid is lying?

Are children poor liars? Do you think you can easily detect their lies? Developmental researcher Kang Lee studies what happens physiologically to children when they lie. They do it a lot, starting as young as two years old, and they're actually really good at it. Lee explains why we should celebrate when kids start to lie and presents new lie-detection technology that could someday reveal our hidden emotions.

Related tags:

TED is supported by ads and partners

Watch next