Page 9 - Health and Healing Through Nature Article
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            Wilderness Access (continued)

             Intervention                   Result/Outcome
             Exercise in forest             Salivary amylase decreased with forest walking, decreased appetite 47


             Nature walks                   Decreased blood pressure, cortisol, heart rate 48


             Increased perception of        Increased physical and mental health 49
             greenness


             Mice and cell-culture studies Microdiversity decreases allergies 50

             Healthy vs. Allergic           In healthy people, the IL-10 expression was positively correlated with
             individuals                    gammaproteobacterial genus of Acinetobacter abundance
                                            Allergic individuals had lower diversity 51


             Farms and high biodiversity    Decreased risk of asthma with more biodiversity on farms 52

             Vector-born diseases           Affect economic development  53


             West Nile Virus and bird       The more rich the non-passerine bird species, the fewer mosquito and
             species richness               human infection rates of West Nile Virus 54


             Species diversity in           Diversity decreased imbalance and disease risk 55
             ecosystem


             Biodiversity                   Negatively correlated with malaria transmission in African
                                            countries 56

             Biodiversity loss and eco      Loss of predators and results in imbalance
             disruption                     Increased vector-born diseases 57


             Dilution effect                The more biodiversity, the more competition, the less imbalance 58


             Health and biodiversity        Health depends on biodiversity, including: new medicine discovery,
                                            research, food, infection spread 59


             Biodiversity                   Essential for balance, imbalance creates disease 60


             Viewing charismatic macro-  Viewing large animals (such as at a zoo or wildlife preserve) has
             and megafauna (large see       shown improvement in quality of life on self-report 61
             and land animals)





        Nature and Healing - David Bilstrom, MD                                                                    9
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