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TED-Ed

When are you actually an adult? - Shannon Odell

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10,610 Questions Answered

TEDEd Animation

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Most countries recognize 18 as the start of adulthood by granting various freedoms and privileges. Yet there’s no exact age or moment in development that we can point to as having reached full maturity. If there’s no consensus on exactly when we reach maturity, when do we actually become adults? Shannon Odell shares how scientists define adulthood using stages of brain development.

Additional Resources for you to Explore

Under most laws, young people are recognized as adults at age 18. But emerging science about brain development suggests that most people don't reach full maturity until 25. To find out more, check out this NPR interview with Sandra Aamodt, neuroscientist, and co-author of the book Welcome to Your Child's Brain.

Emerging science signals that many of our conceptions of adulthood and maturity are wrong or ill-informed. For a broader overview of teen brain development, check out this lesson or this explainer video of the adolescent brain.

Finally, Frank Green explains why teens sometimes behave like a different species and how younger brains differ from their adult counterparts.


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Meet The Creators

Educator
Shannon Odell
Director
Biljana Labović
Narrator
Alexandra Panzer, Gen Parton-Shin, May Yoshioka
Storyboard Artist
Wing Luo
Animation Supervisor
Amarello Rodrigues, Henrique Barone
Lead Animator
Murilo Jardim
Animator
Javier Ibañez , Paulina Juárez Mandujano
Art Director
Nuri Keli, Henrique Barone
Illustrator
Salvador Padilla
Sound Designer
Weston Fonger
Composer
Weston Fonger, Samuel Bellingham
Director of Production
Gerta Xhelo
Producer
Alexandra Zubak
Associate Producer
Abdallah Ewis
Editorial Director
Alex Rosenthal
Editorial Producer
Shannon Odell
Expert Consultant
Katie Insel , Bonnie Nagel

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