There are some people who can remember almost every single day of their lives.
Researchers at University of California have evaluated more than 500 people who thought they might have highly superior autobiographical memory. The scientists confirmed just 33 cases, including the 11 in the study, but identified another 37 strong candidates who need further testing. Most of these differences, unsurprisingly, were in areas associated with autobiographical memory. The participants also had more robust white matter linking the middle and front parts of the brain compared with a group of control subjects. The researchers note that people with the condition of hyperthymesia did not score high on routine memory tests and have a different kind of super memory than people who can remember long lists of facts and numbers.