Editing Depersonalization (section)

=== Situational ===
Experiences of depersonalization/derealization occur on a continuum, ranging from momentary episodes in healthy individuals under conditions of [[Stress (biology)|stress]], [[fatigue]], or [[Drug|drug use]], to severe and chronic disorders that can persist for decades.<ref name=":0" /> Several studies found that up to 66% of individuals in [[Near-death experience|life-threatening accidents]] report at least transient depersonalization during or immediately after the accidents.<ref name="Sadock2017-Epid-DP-DR" />

Several studies, but not all, found age to be a significant factor: [[adolescents]] and [[young adults]] in the normal population reported the highest rate. In a study, 46% of college students reported at least one significant episode in the previous year. In another study, 20% of patients with minor head injury experience significant depersonalization and derealization.

In [[general infantry]] and [[special forces]] soldiers, measures of depersonalization and derealization increased significantly after [[Military education and training|training]] that includes experiences of uncontrollable stress, semi-starvation, [[sleep deprivation]], as well as lack of control over [[hygiene]], movement, [[communications]], and [[social interaction]]s.<ref name="Sadock2017-Epid-DP-DR" />