If you ask anyone on the street, "adulthood" is generally said to begin at the age of 18 or maybe 21 but new findings out of the University of Cambridge indicate the human brain is not fully developed until our late 20s or even early 30s.

To learn more on this topic KCBS Radio News Anchor Steve Scott spoke with Dr.Jay Giedd, Director of Child and Adolescent Psychiatry at UC San Diego