A common cholesterol drug might protect your brain from Alzheimer's — but I read the actual study, and there's a red flag nobody is talking about.

Nick Norwitz covered this story. I went further — I pulled the original paper published in Aging Biology and read every line. Here's what I found.Researchers ran a hypothesis-free screen of FDA-approved drugs to find compounds that could disrupt the 14-3-3/hexokinase protein interaction — a mechanism implicated in the protein aggregation that drives Alzheimer's disease and other dementias.

Six drugs emerged from the screen. Ezetimibe was one of them, and it stood out for one reason: it can cross the blood-brain barrier. That's where the excitement starts. But it's also where you need to slow down. Because buried in the study design, I found something that changes everything.

As a vascular surgeon who has spent years watching patients lose their brains — and their lives — to preventable disease, this is the kind of detail I can't ignore. It's exactly why I won't be prescribing this for dementia prevention in my practice.This video is for anyone who heard the ezetimibe-for-dementia claim and wanted the full picture — not the highlight reel.

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🧬 About Dr. Lily Johnston

Dr. Johnston is a double board-certified vascular and general surgeon in San Diego, specializing in metabolic and cardiovascular prevention. She’s the founder of CorSight Health and a passionate advocate for reimagining how medicine approaches chronic disease.

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