Wendy Nelson looks at an album of family photographs with her father Richard, who has Alzheimer’s disease, at his home in Foxborough, Massachusetts, U.S., March 21, 2023. Wendy Nelson’s mother and Richard’s Webber’s wife Pamela, who is on the cover of the photo album, died from Alzheimer’s disease, and genetic tests show that Wendy carries two APOE4 gene variants, and her three daughters each carry one APOE4 gene variant, indicating an increased risk of Alzheimer’s disease. REUTERS/Brian Snyder