Optimal Health Daily - Fitness and Nutrition 3341: Got a Lot On Your Mind? The Mind Clearing Magic of Going For a Run by Dr. Jenny Brockis on Running and Focus
Mar 28, 2026
Short runs or brisk walks clear mental clutter and restore focus in 20–30 minutes. Aerobic movement boosts blood flow to the prefrontal cortex and sparks rapid cognitive benefits. Exercise stimulates brain growth factors, protects memory centers, and elevates mood through dopamine, serotonin, and endorphins. Regular walking may lower long-term dementia risk.
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Use A Short Brisk Run To Clear Your Mind
- Do go for a 20–30 minute brisk walk or run when your mind feels cluttered to restore clarity and energy.
- Dr. Jenny Brockis says 20 to 30 minutes is enough to feel restored, re-energised and clear about what needs to be done next.
Author Switched From Running To Brisk Walks
- Dr. Brockis shares she now brisk-walks because knee issues prevent running, yet still gets cognitive benefits.
- She uses her location between bushland and ocean to choose green or blue spaces for restorative walks.
Running Boosts Executive Brain Function Fast
- Aerobic exercise rapidly increases blood flow to the prefrontal cortex, boosting planning, organizing, and focus.
- Dr. Brockis notes that just 20 minutes of aerobic exercise significantly raises frontal cortex blood flow for immediate cognitive benefit.