A study done by the University in Oslo, by Professor Fahri Saatciouglu; "Study was done on Breathe Smart participants who have been involved with party drug use. Their level of stress and anxiety was measured by two independent tools, Becks Depression Inventory (BDI) and Hopkins Symptom Checklist-25 (HSCL-25); before they started the course and right after they have finished the course. The analysis was done by independent investigators associated with UiO. There was a significant and sharp drop in the scores of both measures after the course in all three groups divided according to the initial BDI scores (low, medium, high stress). These data indicate that the Breathe Smart program is very effective for fighting stress and anxiety in this special target group of young people".