Recent studies by the National Institute on Aging (NIA) shed new light on a link between exercise and memory. By exercising regularly, you can increase your ability to retain learned and new information. Scientists examined the muscles during exercise to determine which proteins are released. The studies revealed that a protein called cathepsin B is released during aerobic exercise. The protein travels to the brain after being released. Cathepsin B triggers new brain cell growth, scientists believe this is key in the link between memory and exercise.
Researchers discovered an increase in the protein cathepsin B when examining mice who regularly ran on exercise wheels. The mice who exercised produced greater amounts of the protein than the mice that did not exercise. Further, mice that released cathepsin B displayed better results in memory tests than the mice that did not.
Dr. Henriette van Praag, a neuroscientist at the NIA states, “Overall, the message is that a consistently healthy lifestyle pays off.” In humans, the release of cathepsin B is also triggered by exercise. This means that simply increasing physical activity can aid in an individual’s ability to perform better on complex tasks and memory retention.
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