Natural Environments and Human Health. Alan W Ewert
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Readers specifically can expect to take four concrete pieces from this book. Through knowing the health benefits of being in nature, people will:
1. more readily be predisposed to integrating nature into their personal and professional lives;
2. be more prepared to implement action whether that is in programming or through legislation;
3. understand some of the critiques and techniques of researching the health benefits of nature so that they will be able to keep current and assess future research; and
4. renew their appreciation of nature and want to go outside and take everyone with them.
Underlying Assumptions
This book has a foundational assumption that interaction with the natural world is most often a positive, health-enhancing experience. While some literature discusses potential negative outcomes from interaction with natural environments (Andrews and Gatersleben, 2010; Bruni et al., 2012), the vast majority of research and scholarship supports the overall assumption in this book that natural environments can provide health-promoting experiences and behaviors for individuals and groups (Johansson et al., 2011; Kline et al., 2011). For example, Russell (2003) and Mitten (1994) propose that therapy done in natural settings can be effective in creating more positive and health-enhancing behaviors. In addition, Ewert and Galloway (2012) and Mitten (2009) suggest that programs such as those that are adventure-based can provide opportunities for achieving health and wellness within society. In a similar fashion, O’Brien et al. (2011) draw connections between outdoor education and skills developed in woodlands and greenspaces and human health and well-being. In a socio-ecological approach to health, health results from an interwoven relationship between people and their environment. Natural environments play a key role in a socio-ecological approach to health because these environments encourage and enable people to relate to each other and the natural world (Maller et al., 2006). Along the same thinking, there are a number of theories and practices related to the restorative nature of natural environments, namely attention restoration, friluftsliv, and psycho-evolutionary connections, as discussed later in the book. We acknowledge that nature can be harsh; many environments because of their geographic location, including altitude, are inclement for humans. Storms, earthquakes, and volcanoes can have devastating effects; still nature is not evil or against humans. We are part of the global and perhaps cosmic ecosystem with both benign and catastrophic forces.
The second primary assumption made in this book is that the effects of natural environments upon human health can actually be felt, observed, and/or measured. Larivière et al. (2012) suggest that while experiences in natural environments often result in positive anecdotal accounts, a substantial amount of variation exists from a variety of empirically derived studies and perspectives. Understanding these potential and real outcomes is made even more urgent by authors such as Lyytimaki (2012) and Louv (2005) who believe that members of industrialized societies are becoming more alienated and separated from nature experiences and more accustomed to indoor and technology-oriented environments; they argue that this separation from nature has adverse effects on individuals’ health and well-being.
The third primary assumption is that in order for the natural environment to positively impact human health we need to care for the environment. With an understanding of our need for nature for health and well-being, people are more likely to be advocates to ensure environmental or ecological quality. People will have a deeper understanding of the human–nature connection and when we feel that on a visceral level we will develop a strong ecological conscience leading to positive action (see Chapter 8).
Defining the Terms
A number of terms are used extensively in this book and are defined in the following way.
• Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity (World Health Organization, 1948). Health and well-being is seen as spanning across six dimensions of a person’s existence. The dimensions involve both the micro (immediate, personal) and macro (global, planetary) environments (Blonna, 2011). The six dimensions of health and well-being include the following:
Emotional health is being in touch with feelings, having the ability to express them, and being able to control them when necessary. Optimal functioning involves understanding that emotions assist us get in touch with what is important in our lives. Our emotions help us feel alive and provide us with a richness of experience that is uniquely human.
Environmental health includes aspects of human disease and injury that are influenced by variables in the environment. This includes the study of both direct and pathological effects of various chemical, physical, and biological agents, as well as the effects on health of the physical and social environments such as parks, greenspaces and undeveloped landscapes (adapted from the US Department of Health and Human Services, 2000).
Intellectual health is the ability to process information effectively. Intellectual wellness involves the ability to use information in a rational way to problem solve and grow. It also includes factors such as creativity, spontaneity, and openness to new ways of considering situations.
Physical health is how well the body performs its intended functions. Absence of disease, though an important influence on physical wellness, is not the sole criterion for health. The physical domain is influenced by factors such a genetic inheritance, nutritional status, fitness level, body composition, and immune status.
Social health is being connected to others through various types of relationships. Individuals who function optimally in this domain are able to form friendships, have intimate relationships, and give and receive affection. They are able to give of themselves and share in the joys and sorrows of being part of a community.
Spiritual health is often described as feeling connected to something beyond oneself. Spiritual wellness is expressed through an inner peace and understanding of one’s place in the greater universe. People can express spirituality through participation in organized religious activities, often involving the belief in a supreme being or supernatural force as well as a formalized code of conduct by which to live, or in many other ways such as spending time in nature. The crucial underlying feeling is a perception of life as having meaning beyond the self, often enhanced by being part of a community and helping others.
• Connectedness to nature: An individual’s sense of connection or relationship to the natural world. This concept is often linked to predisposing factors such as personality, past experience with natural environments, and a specific setting and/or situation.
• Constructivism as a learning theory is the active mental constructions of children