![Uncredited Neuropsychologist Yakeel Quiroz, of Massachusetts General Hospital, poses for a selfie during an August 2023 trip to Colombia, where her research team studies a large extended family with an inherited form of Alzheimer’s that strikes in their 40s. (Yakeel T. Quiroz via AP)](https://mapi.associatedpress.com/v2/items/7c016be7764040d193cc12f8098acdb1/preview/preview.jpg?s=680x)
Neuropsychologist Yakeel Quiroz, of Massachusetts General Hospital, poses for a selfie during an August 2023 trip to Colombia, where her research team studies a large extended family with an inherited form of Alzheimer’s that strikes in their 40s. (Yakeel T. Quiroz via AP)
![Uncredited Neuropsychologist Yakeel Quiroz poses for this undated selfie in front of a imaging screen. (Yakeel Quiroz via AP)](https://mapi.associatedpress.com/v2/items/043f41094da145cabc22377bbb671370/preview/preview.jpg?s=680x)
Neuropsychologist Yakeel Quiroz poses for this undated selfie in front of a imaging screen. (Yakeel Quiroz via AP)
![Uncredited In this undated photo provided by Massachusetts General Hospital, Dr. Francisco Lopera, right, of the University of Antioquia, a neurologist who has spent decades caring for a large Colombian family plagued by early-in-life Alzheimer’s, confers with fellow researcher Yakeel Quiroz of Massachusetts General Hospital. (Massachusetts General Hospital via AP)](https://mapi.associatedpress.com/v2/items/786bd5972d614209ab119beb618e0cef/preview/preview.jpg?s=680x)
In this undated photo provided by Massachusetts General Hospital, Dr. Francisco Lopera, right, of the University of Antioquia, a neurologist who has spent decades caring for a large Colombian family plagued by early-in-life Alzheimer’s, confers with fellow researcher Yakeel Quiroz of Massachusetts General Hospital. (Massachusetts General Hospital via AP)