Study reveals a surprising cause of cognitive decline—and the key to reversing it

An aging brain’s sad, slow decline may not be as inevitable as everyone thinks.

A new scientific study from the University of California, San Francisco (UCSF), has come to the startling conclusion that a single protein is the catalyst for cognitive dysfunction—and the damage it causes can be reversed.

Scientists at UCSF’s Bakar Aging Research Institute examined activity in the hippocampus, the brain’s command center for learning and memory. Comparing young and old mice, the researchers discovered that older brains...