On June 27, 2026, Katie Couric was enjoying a laid-back weekend morning in Aspen until her husband, John Molner, rushed her to the hospital. In a July 2026 Substack post, the journalist wrote that Molner had been compelled to make the decision after realizing that she had no recollection of the two panels she had attended earlier in the day. After doctors asked her what year it was and who was the president, she answered 2024 and Joe Biden, respectively. Molner also wrote that Couric repeatedly asked him why they were at the hospital and kept reintroducing herself to the nurses. Her lapse in memory made doctors fear that she was having a stroke.
記憶の混乱は脳卒中の症状のひとつであり、見過ごすべきではないため、主な健康問題をまず除外したいという医師の判断は当然のことだった。さらに Stroke.org.uk は、脳卒中が短期記憶に影響を及ぼす可能性が長期記憶より高いことを指摘している。しかし MRI やその他多数の検査の結果、医師たちはクーリックが脳卒中を患っていないと判断した。代わりに、彼らは彼女が一過性全健忘（Transient Global Amnesia、TGA）を患っており、翌日には元の自分に戻るだろうという結論に達した。
回復の過程で、テレビの司会者は脱水、ストレス、あるいはアスペンの高度が自分の状態を引き起こしたのではないかと考えた。しかし、研究は彼女の多くの仮説を強く裏づけるものではなかった。『こんなに変わった出来事だったが、もっと深刻な事態にもなり得た』とクーリックは書いた。『結局のところ、安堵している――ただし、6月の土曜の数時間は私には永遠に欠けることになるだろう』とも。研究はクーリックの状態についていくらかの明確さを示している点は注目に値する。
Katie Couric’s temporary condition is pretty rare
Cleveland Clinic defines transient global amnesia (TGA) as a condition that abruptly brings on a temporary episode of memory loss. Due to the condition, a person experiences anterograde amnesia and is unable to form new memories and has trouble remembering recent events. For most people, TGA only lasts for a couple of hours. Although the exact cause of TGA remains unclear, the condition appears to be triggered by a temporary hindrance in the functioning of the hippocampus, the part of the brain largely responsible for memory and learning.
In some cases, TGA could be caused by physical exertion, stress, cold plunges, pain, or sexual intercourse. Some may even experience a type of TGA after drinking alcohol excessively and due to certain medication use. TGA is rare and only affects around five to ten in 100,000 people in the U.S. yearly. With that in mind, Katie Couric seems to have joined the ranks of boomer celebrities who were diagnosed with rare diseases.
During a July 2026 chat with Katie Couric Media, David Perlmutter, M.D., FACN, said that most people who had the condition would likely only have one episode in their lifetime. Dr. Perlmutter also explained how the symptoms of stroke differed from the benign condition, saying, “[People with TGA] can speak normally, move both sides of their body normally, recognize loved ones, and remain fully conscious. In contrast, a stroke often causes additional symptoms such as weakness, numbness, difficulty speaking, vision changes, or problems with balance.” Still, Dr. Perlmutter stressed that it was important to present your symptoms to a doctor who could accurately diagnose which one of the most common causes of memory loss was responsible for them.
