Scientists Study ‘SuperAgers,’ Make Surprising Alzheimer’s Discovery

Key Points:

• A new study led by the University of Chicago and the Translational Genomics Research Institute found that "SuperAgers"—people in their 80s and 90s with exceptional memory—do not differ genetically from peers with average cognitive abilities regarding Alzheimer's risk genes.
• Researchers analyzed 231 adults aged 80 or older, examining the APOE gene and polygenic risk scores linked to Alzheimer's, finding no significant genetic differences between SuperAgers and controls.
• The study suggests that exceptional memory in old age is influenced by factors beyond inherited Alzheimer's risk, including biological, behavioral, and social components such as brain structure, mental stimulation, exercise, and social connections.
• Limitations include the study’s relatively small size and single time-point analysis, with researchers emphasizing that genetics is only one part of cognitive aging and cannot predict who will become a SuperAger.
• Future research aims to integrate cognitive testing with brain imaging, biomarkers, and lifestyle data to better understand memory preservation, offering hope that memory decline is not inevitable in aging.