Wendy Nelson prepares a calzone to take to her father, who has Alzheimer’s disease and lives in his own home, in Foxborough, Massachusetts, U.S., March 21, 2023. After the death of her mother from Alzheimer’s disease, Wendy Nelson took a genetic test and found she carries two APOE4 gene variants, indicating an increased risk of Alzheimer’s disease. REUTERS/Brian Snyder