Katie Couric says she experienced an episode of transient global amnesia (TGA) in June, following symptoms that initially led her family to think she was having a stroke. In a Substack post, the veteran journalist describes an ordinary Saturday morning that changed when she could not form or retain memories for a period of time, despite remaining aware of who she was and what was happening around her. Multiple outlets report that the condition suddenly robs people of nearly all memories during the episode, which can make it appear stroke-related in the moment. Couric later received a diagnosis confirming TGA rather than a stroke, and she says she is now fine. The accounts also note that Couric reflected on the experience as something she will not fully remember, explaining that the episode affected her ability to recall what happened during that timeframe. NBC News and other coverage characterize TGA as rare and temporary, with symptoms that typically resolve, though the episode itself can be alarming for patients and those around them.