Scientists found a protein that drives brain aging – and how to stop it (sciencedaily.com)

Researchers at UCSF report that a protein called FTL1 increases in the aging mouse hippocampus and is associated with weaker neuron connections and worse memory. In experiments, raising FTL1 made young mice’s brain cells and behavior resemble those of older animals, while reducing FTL1 in older mice improved synaptic connections and memory performance. The study also links FTL1 to slowed cellular metabolism in the brain and suggests metabolism-boosting approaches could counter some effects.