I Did My Own Research

with @DrSaraMargolin: How Inevitable is Dementia?

August 17, 2026·41 min
Episode Description from the Publisher

Dr. Fran sits down with Dr. Sarah Margolin — cognitive scientist, associate professor, and creator behind @DrSarahMargolin — to talk about what the science of aging actually says, and why so much of what circulates online gets it wrong.Dr. Margolin studies cognitive aging and reading comprehension, and she's built a following by taking on viral myths about getting older — from the false idea that "aging is a disease" to the assumption that memory lapses always signal dementia. In this conversation, she breaks down:The real difference between normal age-related forgetfulness and dementia, including what a basic cognitive screening (like the MMSE) actually tests forWhy the biopsychosocial model — nutrition, exercise, mental engagement, and social connection — matters more than any single supplement, peptide, or "hack"What the Mediterranean diet really means How mindset around aging and menopause can measurably affect symptoms, and why cross-cultural research shows attitude mattersWhy older adults are more tech-capable than we give them credit forWhat it's like to design and run a research study from the ground up, and why "doing your own research" is a lot more rigorous than reading a headlineThe two also get into the broader mission behind Dr. Margolin's In Plain Science series — an effort to demystify how research funding, peer review, and scientific ethics actually work, so people can better evaluate the claims they see online.Dr. Margolin's social media: @DrSaraMargolinDr. Fran's social media: @PagingDrFran

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