Flashbacks! Evolution! May 2026

When researchers examined medical records of UK servicemen from the Boer War and World Wars I and II, they found that flashbacks were virtually non-existent . Instead, soldiers then expressed trauma through physical symptoms (somatization) like tremors or "effort syndrome".

Flashbacks and post-traumatic stress disorder: the genesis of a 20th-century diagnosis. National Institutes of Health (.gov) Flashbacks! Evolution!

It wasn't until the Vietnam War era and the 1980 inclusion of PTSD in the DSM-III that the flashback became the "hallmark" symptom we recognize today—defined by a vivid, sensory "here-and-now" reliving of events. When researchers examined medical records of UK servicemen

If you're interested in the or modern clinical definitions, check out these papers: Flashbacks and post-traumatic stress disorder - PubMed National Institutes of Health (

The term "flashback" was originally coined in the 1960s to describe the recurring visual hallucinations experienced by LSD users .