Running Improves Memory Through Muscle Factor, Could Deter Dementia

Running Improves Memory Through Muscle Factor, Could Deter Dementia
That running can boost our memory to the same degree or more than brain training is an old observation that still puzzles scientists worldwide. But a new study by National Institute on Aging scientists is providing information about how that happens and emphasizing that to keep memory from fading, people should keep running. The study, Running-Induced Systemic Cathepsin B Secretion Is Associated with Memory Function, published recently in the journal Cell Metabolism, has already attracted plenty of media coverage, since the findings overwhelmingly show that people who exercise more also reap the most benefits of improved cognition. It is a recipe that could keep dementia at bay. Scientists have long studied brain changes triggered by endurance exercise such as running, and they have identified growth factors and other brain-specific molecules that contribute to the building of more neural connections with exercise - but questions still remained regarding the effect of exercise on memory in the very first place. Attempting to clear confusion, senior author Henriette van Praag at the National Institute on Aging went to what she imagined was the source of the potential changes - the muscles.  Because muscles undergo radical changes when exercised, they might produce some substance that travels through the bloodstream to the brain to impact memory function. "We wanted to cast a wide net. Rather than focus on a known factor, we di
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