Kaoru Inokuchi and colleagues show that reducing neurogenesis in rats impairs recovery of learning capacity while promoting neurogenesis through physical activity on a running wheel increased hippocampal capacity. This finding implies that neurogenesis, which can be reduced by stress and aging, underlies the brain's capacity for new memories. The study may also explain why exercise is especially important for patients with memory disorders such as Alzheimer's disease as well as for healthy people to help maintain memory as they age.The headline emphasizes Alzheimers, but the finding is much bigger. EXERCISE GENERATES NEW NEURONS. This deserves to be a major part of all discussions and education about health. Conventional wisdom, even among scientifically literate people, still holds that the brain stops producing neurons in adulthood. "It's all downhill after 21."
Labels: Grand Blueprint
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