A new study shows daily walking reduces the risk of cognitive decline.

By Aniket Chakraborty July 29, 2025 Arrow HEALTH & WELLNESS

This benefit is especially strong for people with the APOE4 gene, linked to Alzheimer's.

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Nearly 3,000 participants aged 70–79 reported their walking habits over 10 years.

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Those who maintained or increased walking showed improved brain function.

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Even a small amount of walking, like 3,800 steps, reduced dementia risk by 25%.

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Walking helps produce BDNF, a protein that promotes brain cell growth.

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Regular exercise also reduces neuroinflammation, a key Alzheimer's symptom.

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The study found walking to be most beneficial for APOE4 gene carriers.

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The findings highlight the importance of starting an exercise regimen at any age.

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Experts stress that "every step counts" for brain health and cognitive longevity.

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