* The study’s focus on Black health piqued Harper’s interest, and he decided to participate for as long as he could. As a Black American, Harper faces a risk of Alzheimer’s disease and other dementias that is twice that of white Americans his age. Some studies suggest that experiencing racism and other forms of discrimination contributes to a higher risk of cognitive decline. Last year researchers analyzed data gathered from nearly 900 families over a 17-year period to understand how discrimination can affect Alzheimer’s risk. Capturing these nuances could help reduce dementia risk in innovative ways.