Nature deficit disorder From Wikipedia, the free encyclopedia Nature Deficit Disorder, a term coined by Richard Louv in his 2005 book Last Child in the Woods, refers to the alleged trend[1] that children are spending less time outdoors,[2] resulting in a wide range of behavioral problems.[3][4] This disorder is not recognized in any of the medical manuals for mental disorders, such as the ICD-10[5] or the DSM-IV,[6] neither is it part of the proposed revision of this manual, the DSM-V.[7] Evidence was compiled and reviewed in 2009. [8] |