It seemed to happen overnight. Andrea entered the assisted living facility to join her 94-year-old mother for casino night. Unable to find her at the event, Andrea went to her mother’s room. She was shocked by what she saw. Her mom was sitting on her bed wearing half her wardrobe— two summer dresses, pants, multiple shirts and sweaters, many scarves and lots of pieces of jewelry. “I asked Mom why she had on all those clothes. She seemed confused and couldn’t give me an explanation,” Andrea said. “I asked her why she wasn’t at the casino night event, and she began to get agitated. Up until this point, my mom was of sound mind.” In another case, 77-year-old Barbara, who is a full-time caregiver for her husband, woke up one morning so dizzy she had difficulty getting out of bed. When she tried to phone her daughter, she couldn’t remember the number. When she finally did reach her daughter and told her what was wrong, Barbara couldn’t find the right words to answer her daughter’s...