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Forests have historically supplied humans with timber, fuel, and forage. They have also provided goods and services associated with human physical, mental, social, and spiritual health. Given competing priorities for funding in healthcare, research on forests and health is important from a health economics perspective. Engagement with forests (including wilderness areas, managed production forests, and urban forests) for enhanced human health and wellbeing, and perhaps for illness prevention at a fraction of the cost of medical interventions, is a major opportunity for forest management in the 21st century. Despite this general recognition, there is a lack of information regarding public health policies and approaches that exist in relation to forests and trees. The available literature suggests that the majority in the field of public health view the natural environment with ambivalence. However, a paradigm shift is underway and there is an emerging field working with the positive impacts that trees and forests have on human health and wellbeing. While the value of forests has been noted by many health practitioners in Europe and Japan, health practitioners and the associated health industry in North America remain largely focused on treatment rather than preventative approaches. Largely as a result of advocacy from forestry and recreational organizations, this view is beginning to change, but the focus in the healthcare industry on treatment rather than prevention remains deeply entrenched.