Psychologist and neuroscientist Roselinde Kaiser studies the formative years of adolescence to better understand our mental health, even into adulthood. This talk was filmed at TEDxBoulder. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreading. To learn more about TEDxSHORTS, the TEDx program, or give feedback on this episode, please visit http://go.ted.com/tedxshorts.