Richard Louv introduced the term “Nature-Deficit Disorder” in 2005 with the publication of his best-selling book, “Last Child in the Woods: Saving Our Children from Nature-Deficit Disorder.” He coined the phrase to serve as a description of the human costs of alienation from nature and it is not meant to be a medical diagnosis (although perhaps it should be). He argues that all of us, especially children, are spending more time indoors, which makes us feel alienated from nature and perhaps more vulnerable to negative moods or reduced attention span.
