The book uses scientific research to support its argument, particularly in discussions about nature’s benefits for mental and physical health. For example, the text cites various studies indicating that time spent outdoors can alleviate symptoms of stress, anxiety, and depression, as well as enhance cognitive functions. The therapeutic effects of nature on mental health have been increasingly supported by scientific studies. Research in environmental psychology and public health suggests that interacting with natural environments can lower levels of cortisol, the stress hormone, as well as reduce symptoms of anxiety and depression. Some studies even point to specific mechanisms, such as how the scent of phytoncides (natural compounds produced by trees) can lower anxiety, improve mood and concentration, and enhance one’s overall quality of life. Research in the field of ecotherapy has shown that activities like forest bathing, walking in green spaces, or even just viewing nature through a window can contribute to mental well-being. These claims align with Louv’s arguments, substantiating his broader message that contact with nature is essential for mental health. However, it’s important to delineate where the book relies on empirical data and where it transitions into theoretical or philosophical areas. For example, when introducing ideas like an “eighth intelligence” or “naturalist intelligence,” the book enters territory that is not universally supported by existing psychological or educational science and data.