I hadn't heard the thing about the maturity stopping at the age the drug abuse started but it makes things so much clearer for me when dealing with my son. I really think it has made me have a better understanding of him. Now I just pray that he will go back to his real age when he stops. He is in rehab now and due to be out in 2-3 weeks as he just finished the second major part of the rehab. But only time will tell.