The thesis attends to a gap in literature pertaining to studying nature and late adolescence.  In particular, Dr. Bowen mentioned that “this study measured one aspect of mental vitality, that of mental acuity in 16-18 year old students at an international school. Using the d2 Test of Attention to measure the impact of regular nature walks, this study found a significant improvement in participants’ mental acuity after a regular, twice weekly, 40 to 60 minute duration nature walk intervention.”