New Study Finds Cognitive Impairment Is Skyrocketing Across America New Study Finds Cognitive Impairment Is Skyrocketing Across America November 5, 2025 By Etienne de la Boetie2 By Nicolas Hulscher, MPH A major new Neurology study analyzing more than 4.5 million U.S. adults has uncovered a striking trend: self-reported cognitive disability—difficulty concentrating, remembering, or…