Could your sleep quality predict Alzheimer's? new study investigates racial differences

This completed observational study looked at whether poor sleep quality, specifically slow wave sleep, is linked to brain changes that raise Alzheimer's risk, and whether this link differs between African-American and white older adults. Researchers recruited 210 cognitively normal adults aged 60-75, monitored their sleep at home and in a lab, and used brain scans to measure amyloid plaques, a hallmark of Alzheimer's. The goal was to understand why African-Americans have higher Alzheimer's rates, not to test any treatment.