The Longevity Podcast: Alzheimer's and Brain Health Research

Dung Trinh
  • 5.0 (6)
  • Medicine
  • Weekly

AI-hosted deep dives into the latest Alzheimer's, dementia and brain health research, curated by Dr. Dung Trinh. Each episode breaks down a recent study or topic, such as diet, sleep, exercise, heart health, biomarkers, early detection and new treatments. We explain what the science says and what it may mean for staying sharp as we age.Episodes are discussions generated with AI hosts. Every episode cites its sources so you can read the original research yourself. This podcast is for education only and is not medical advice. Talk with your doctor about your own health.

  1. 4d ago

    Brain Health: Does High-Dose DHA From Fish Oil Reach the Aging Brain?

    Send us Fan Mail In a two-year randomized, double-blind, placebo-controlled trial, 365 adults aged 55 to 80 at higher risk for dementia took 2,000 mg of DHA, an omega-3 fatty acid found in fish oil, or a placebo each day. DHA levels in the fluid around the brain rose by about 17%, but the trial found no benefit to memory or thinking. We look at what the study measured, what it found, and its limitations, including that about 38% of participants dropped out. This episode is for education only and is not medical advice. Source: Yassine HN et al. "CNS target engagement of high-dose DHA supplementation in older adults at risk for dementia: a randomised, double-blind, placebo-controlled trial." eBioMedicine 2026;129:106316. https://doi.org/10.1016/j.ebiom.2026.106316 (CC BY 4.0) This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  2. 6d ago

    Brain Health: Frailty as a Compass for Alzheimer's Care

    Send us Fan Mail Two people can be the same age but have very different reserves to handle illness and treatment. In this editorial, Dr. Nicholas Vogt and Dr. Dae Hyun Kim look at why frailty matters as more older adults are evaluated for new anti-amyloid Alzheimer's therapies. They build on an expert-panel proposal to use frailty as a "clinical compass" that guides care rather than a reason to exclude people, with fuller assessment, team discussion, and reassessment over time. We talk about the open questions, from what doctors should do differently once frailty is found to why future studies and registries need to measure it. This episode is for education only and is not medical advice. Source: Vogt NM, Kim DH. "Frailty in the anti-amyloid era: an opportunity to individualize care." The Journal of Prevention of Alzheimer's Disease, 2026;13(9):100682. DOI: https://doi.org/10.1016/j.tjpad.2026.100682. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  3. Oct 27

    Brain Health: Can 40 Hz Light and Sound in VR Help Alzheimer's?

    Send us Fan Mail Can flickering light and sound at 40 beats per second, delivered through a virtual reality headset, safely engage the brain in early Alzheimer's disease? In this small single-session feasibility study, 11 older adults with mild cognitive impairment due to Alzheimer's or mild Alzheimer's dementia explored three immersive VR environments with 40 Hz audiovisual stimulation and a sham comparison while their brain waves were recorded by EEG. Everyone finished the session with no serious side effects, the 40 Hz stimulation produced clearly stronger brain responses at that frequency than sham, and in early exploratory tests video-word pairs learned during 40 Hz stimulation were remembered better than those learned during sham. We talk about what this early study can and can't tell us, and what longer at-home studies would need to show. Source: Reis C, Hainke L, Headley G, Navarro S, Zanto TP, Certain R. "Feasibility of immersive 40 Hz gamma sensory stimulation in early-stage Alzheimer's disease." The Journal of Prevention of Alzheimer's Disease, 2026;13(10):100679. DOI: https://doi.org/10.1016/j.tjpad.2026.100679. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  4. Oct 26

    Brain Health: Dementia Risk and Racial Gaps in Older Americans

    Send us Fan Mail How common is dementia among older Americans, and who carries the heaviest burden? This study used the 2023 National Health and Aging Trends Study, a nationally representative sample of 7,574 older adults, to estimate probable and possible dementia and the factors tied to it. Older age, less education, stroke, falls, and depression or anxiety went with higher odds, while vision correction and hearing aid use went with lower odds. The gaps were striking: Hispanic adults 85 and older had about a 60% predicted probability of probable dementia versus about 35% for non-Hispanic White adults, and chewing or swallowing problems mattered far more for Hispanic adults. We talk about what the study can and can't show, and why hearing, dental, and mental health care may matter for brain health. Source: Lee YS, Cruz JA, Kabakibi M, Moore A, Lee JA, Jun HJ. "Prevalence, risk factors, and racial disparities in probable and possible dementia: the national health and aging trends study." The Journal of Prevention of Alzheimer's Disease, 2026;13(10):100676. DOI: https://doi.org/10.1016/j.tjpad.2026.100676. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  5. Oct 25

    Brain Health: What's Good for the Heart Is Good for the Brain

    Send us Fan Mail Can your heart-risk score hint at how fast your memory and thinking may change? In this editorial, Dr. Maileen Ulep looks at a rural U.S. study (Project FRONTIER) that used the American Heart Association's PREVENT equations to estimate 10-year cardiovascular risk. Each 10-point rise in that risk went with about one extra point of yearly decline on a standard memory and thinking test, especially in attention and delayed memory. We talk about why rural communities are understudied, what the study can and can't show, and why checking heart risk early in life may be one of the best ways to protect brain health. Source: Ulep MG. "What's good for the heart is good for the brain? Evidence from a rural cohort on the longitudinal relationship between atherosclerotic cardiovascular disease risk and cognitive decline." The Journal of Prevention of Alzheimer's Disease, 2026;13(9):100672. DOI: https://doi.org/10.1016/j.tjpad.2026.100672. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  6. Oct 24

    Frailty and Alzheimer's: Why Biological Age Matters for New Therapies

    Send us Fan Mail New disease-modifying therapies are changing Alzheimer's care, but the trials behind them rarely measured frailty, the loss of physical reserve that is common in older adults with Alzheimer's. In this review, a group of European geriatricians and neurologists explains what frailty is and how it's measured, why it may affect safety and benefit, and the open questions and ethical grey zones. They propose a frailty-informed, step-by-step pathway, starting with simple screening in primary care, to guide more individualized decisions. Frailty, they stress, is not a simple yes-or-no for treatment. This episode is for education only, not medical advice. Source: Bellelli G, Brignoli O, Canevelli M, et al. "Integrating frailty into decision-making for disease-modifying therapies in Alzheimer's disease: a proposed expert-opinion based approach." The Journal of Prevention of Alzheimer's Disease, 2026;13(9):100666. DOI: https://doi.org/10.1016/j.tjpad.2026.100666. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  7. Oct 23

    Omega-3 and Memory Decline: The Study Authors Respond to Critics

    Send us Fan Mail Did omega-3 supplement use really go along with faster memory decline in older adults? After two letters challenged their ADNI-based study, study authors Liao and Wang reply point by point: how supplement use was measured, which confounders were and weren't covered, why their result differs from earlier work on the same data, and what their brain-scan findings can and can't show. Their bottom line: the link is a signal worth checking, not proof of harm and not a reason to stop supplements or change guidelines. We walk through the back-and-forth and what it teaches about reading nutrition and brain-health research. Source: Liao ZB, Wang YR. "Response to two letters on omega-3 supplementation and cognitive decline." The Journal of Prevention of Alzheimer's Disease, 2026;13(9):100662. DOI: https://doi.org/10.1016/j.tjpad.2026.100662. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

  8. Oct 22

    Omega-3 and Memory: Does the Data Really Show Faster Decline?

    Send us Fan Mail Did omega-3 supplements really speed up memory decline in older adults? A recent study using the ADNI cohort suggested they might, contradicting earlier work on the same data that linked omega-3 use to lower Alzheimer's risk. In this letter to the editor, researchers Simon Dyall and Mélanie Plourde dig into why: large amounts of missing data, limited adjustment for key dementia risk factors, and other methodological issues that can make results look very different. We unpack what this debate teaches about reading nutrition and brain-health research. Source: Dyall SC, Plourde M. "Do methodological limitations and confounding factors explain the apparent acceleration of cognitive decline in older adults taking omega-3 fatty acid supplements?" The Journal of Prevention of Alzheimer's Disease, 2026;13(9):100661. DOI: https://doi.org/10.1016/j.tjpad.2026.100661. Licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This podcast is created by Ai for educational and entertainment purposes only and does not constitute professional medical or health advice. Please talk to your healthcare team for medical advice.  Never miss an episode—subscribe on your favorite podcast app!

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AI-hosted deep dives into the latest Alzheimer's, dementia and brain health research, curated by Dr. Dung Trinh. Each episode breaks down a recent study or topic, such as diet, sleep, exercise, heart health, biomarkers, early detection and new treatments. We explain what the science says and what it may mean for staying sharp as we age.Episodes are discussions generated with AI hosts. Every episode cites its sources so you can read the original research yourself. This podcast is for education only and is not medical advice. Talk with your doctor about your own health.

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