Category Archives: Prevention

Millions take omega-3 fish oil for brain health but a new study found no benefit

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A large clinical trial found that omega-3 fish oil supplements failed to improve memory or slow brain changes associated with Alzheimer’s disease.

Date:June 29, 2026Source:University of Southern California – Health SciencesSummary:Fish oil supplements successfully delivered omega-3s to the brain, but a two-year study found no meaningful benefits for memory, cognition, or Alzheimer’s-related brain changes. The results challenge the idea that fish oil pills can help prevent Alzheimer’s and shift attention toward overall diet and lifestyle instead.

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How healthy habits promote stronger brains

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  • Research suggests healthy habits may help lower the risk of Alzheimer’s disease and dementia.
  • Controlling high blood pressure and diabetes can support cognitive health as people age.
  • Mediterranean, DASH and MIND diets are linked to better brain and heart health.

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What Your Genetic Risk For Alzheimer’s Means

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Scientists have long known that genetics play a role in Alzheimer’s disease risk. Some genetic markers appear to increase the likelihood of developing the condition, while others seem to offer a degree of protection against cognitive decline and brain aging.

One of the most important genes researchers study is called APOE. Everyone inherits two copies, but the specific version you carry may influence how resilient your brain is over time. In particular, one version called APOE4 is strongly linked to a higher risk of Alzheimer’s disease, while another, APOE2, is associated with lower risk and even exceptional longevity.

Now, new research may help explain why (and why some may be more resilient to aging than others).

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A ‘Youthful’ Brain May Boost Alzheimer’s Resilience

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Key Takeaways

  • Preserved global brain structure appeared to buffer cognitive decline in people with Alzheimer’s pathology.
  • Younger-appearing brains had weaker links between pathology and poorer outcomes in multiple cognitive domains.
  • Other measures of brain reserve or cognitive reserve showed no clear protective cognitive effect.

Read it all HERE