FILE - This Oct. 7, 2003 file photo shows a closeup of a human brain affected by Alzheimer's disease, on display at the Museum of Neuroanatomy at the University at Buffalo in Buffalo, N.Y. On Friday, Jan. 6, 2023, U.S. health officials approved Leqembi, a new Alzheimer’s drug that modestly slows the brain-robbing disease. The Food and Drug Administration granted the approval Friday for patients in the early stages of Alzheimer's. (AP Photo/David Duprey)