The Hidden Price of Aging: Uncovering the Brain's Silent Shift A recent study published in Science has shed light on a surprising phenomenon that may hold the key to understanding why normal aging sets the stage for Alzheimer's disease and dementia.
Researchers from the University of California, San Diego, the New York Genome Center, and the University of California, Irvine, found that around age 50, the brain's immune system undergoes a dramatic overhaul.
The study reveals that the memory center loses many of its longtime immune cells and replaces them with more inflammatory ones.