Katie Couric’s missing hours: The frightening condition that temporarily erases memory
The veteran journalist could speak, walk and take part in public panels, yet later remembered none of it; Israeli neurologist explains transient global amnesia, why it can resemble a stroke and why sudden memory loss requires immediate medical evaluation
On June 27, 2026, celebrated journalist Katie Couric found herself in Aspen, Colorado, for the Aspen Ideas Festival. Her day began with a visit to the local farmers market, where she bought fruits and a hat. She then headed to the Aspen Institute, where she was scheduled to moderate a panel on artificial intelligence and another on the future of journalism.
However, after the second panel, Couric's husband noticed she appeared weak and dizzy, prompting a visit to a nearby hospital. Tests revealed she had a condition known as transient global amnesia (TGA), which causes temporary memory loss. Despite her apparent normalcy during the incident, Couric couldn't recall certain details such as the current date, president, or even her granddaughter's recent birth.
TGA is a relatively uncommon neurological condition, affecting roughly five people per 100,000 annually, typically those between the ages of 50 and 70. The exact cause remains unclear, with theories pointing to temporary disruptions in the hippocampus responsible for memory creation.
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