I heard something today, and wondered if any of the good researchers from this site can back it up? I'm not sure where to look, and am fairly short on time at the moment. Is it possibly true that the frontal lobes don't develop until between the ages of 20- 30? Does this possibly have anything to do with some of the problems we have with our children? This is not something that I know for a fact. It is something I was told and in some caes, it may make sense, but some of the information I have received from this person seems to be highly suspect.