Kath Ligenfelter

Most people cannot remember what they had for lunch the other day, or what the weather was like two weeks ago, or any number of small details about their daily lives. But for the handful of people with hyperthymesia, or “extreme autobiographical memory,” these details are clear and vibrant. An individual with hyperthymesia could recall any detail from any day of his life – say, what the weather was on October 21, 1976, or what they ate for lunch on December 8, 1987 – as long as they lived it, they remember it.