25/02/2026
She remembers being 12 days old. Not in fragments. Not in stories told to her later. In detail.
Rebecca Sharrock, an Australian mother, has a rare condition known as Highly Superior Autobiographical Memory, or HSAM, sometimes called hyperthymesia. It allows her to recall nearly every day of her life with vivid clarity.
Fewer than 100 people worldwide are believed to have this condition.
Rebecca can tell you what she was doing on a specific date years ago. What the weather felt like. What she wore. What she dreamed. What conversations happened. Even physical sensations, including pain from injuries.
One of her earliest memories dates back to when she was just 12 days old. Her mother had taken a photograph of her in a car, and Rebecca says she remembers the moment clearly, not because of the photo, but because she experienced it.
Brain scans of individuals with HSAM have shown stronger connections between areas linked to conscious and subconscious memory. It allows them to instantly retrieve personal life events by date. However, it does not mean they have photographic memory for textbooks or random facts. It specifically relates to autobiographical memory.
On the surface, it sounds like a superpower. Rebecca can pinpoint what she was doing on major historical dates. She has appeared on television programs where her recall was tested against calendars and news archives, and she consistently provided accurate details.
But there is another side. She does not get to forget. Embarrassing moments. Arguments.�Bad news.�Grief. They do not fade. They replay.
She has spoken about how watching television news can be overwhelming because negative stories stick permanently. Sleep can be difficult because memories resurface vividly. Trauma does not blur with time.
For most people, memory softens. Edges round off. Pain dulls. For her, it stays sharp. Rebecca reportedly only realized her ability was unusual after seeing media coverage about HSAM years ago. What she thought was normal turned out to be extraordinarily rare.
Her story fascinates people because it challenges how we understand memory itself. We spend so much of our lives trying to hold on to moments before they slip away. She cannot let go, even if she wants to.
And maybe that reminds us that forgetting is not a flaw. Sometimes, it is protection.
Knowledge Is Power
Knowledge For Human Health