What Is Transient Global Amnesia?

Transient global amnesia (TGA) is a neurological syndrome that causes the sudden, temporary inability to form new memories while leaving consciousness, personal identity, language, and most other cognitive functions intact. Although the condition can be alarming, it is usually short-lived—lasting an average of 6 to 8 hours and resolving within 24 hours. TGA typically occurs in adults between the ages of 50 and 70, with the majority of those affected experiencing only a single episode....