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How Much Exercise Do You Need to Boost Your Brain?

Even a short session in the gym–just ten minutes–may boost your brain by increasing the connections between the dentate gyrus in the hippocampus and certain parts of the cortex.

If you want to boost your brain function, you might want to head to the gym for a bit. A study of three dozen healthy adults showed that even ten minutes of moderate physical activity can have measurable benefits for the brain (PNAS, Sept. 24, 2018).

Ten Minutes of Motion to Boost Your Brain:

The scientists used high-resolution functional magnetic resonance imaging to look at the volunteers’ brain activity before and after short exercise sessions. They found that after the workouts, the subjects’ brains had changed somewhat. They showed stronger connections between the hippocampal dentate gyrus and parts of the cerebral cortex that are important for processing memory. Consequently, the researchers are excited about this evidence that exercise improves the function of the hippocampus, which is a crucial area for memory.

Fit Kids Have Fit Brains:

Previous research has shown links between physical fitness and cognitive skills in young people. Moderate exercise even helps kids think better for several hours.

Another study showed a link between fitness and brain structure (Frontiers in Human Neuroscience, Aug. 19, 2014). Brain scans of 24 youngsters nine to ten years old showed that those who were more fit had more white matter integrity, hinting that their brains might have better connectivity. That could, in theory, help them with memory and learning.

The research didn’t actually show whether exercise boosts brainpower or being sedentary saps it. For that, investigators will have to conduct controlled trials of structured physical activity at recess and after school.

Remember Grandma’s admonition in the old days was “Go out and play!” It seems that far too few kids actually get that opportunity these days. This research suggests we should find ways to make it far easier for kids (and their parents and grandparents) to get aerobic exercise. Even a little bit can help.

12/20/18 redirected to: https://www.peoplespharmacy.com/articles/could-exercise-save-your-brain/

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies..
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