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Study reveals immune driver of brain aging Scientists have identified a key factor in mental aging and shown that it might be prevented or reversed by fixing a glitch in the immune system’s front-line soldiers. Jan 20 2021 Katrin Andreasson is the senior author of a study that identifies a particular set of immune cells as a key driver of mental aging. Steve Fisch Suppose Smokey Bear were to lose it and start setting forest fires instead of putting them out. That roughly describes the behavior of certain cells of our immune system that become increasingly irascible as we grow ol...

 E-Mail Suppose Smokey the Bear were to go on a tear and start setting forest fires instead of putting them out. That roughly describes the behavior of certain cells of our immune system that become increasingly irascible as we grow older. Instead of stamping out embers, they stoke the flames of chronic inflammation. Biologists have long theorized that reducing this inflammation could slow the aging process and delay the onset of age-associated conditions, such as heart disease, Alzheimer's disease, cancer and frailty, and perhaps even forestall the gradual loss of mental acuity that happens...