Ep. 6 APOE4, Cholesterol, and Alzheimer's Risk: What Your Lipid Panel Is Missing

In February of last year, I woke up with brain fog so severe I started researching how to get a brain scan. I was convinced I had amyloid accumulating. I wanted data, not reassurance. It turned out to be a reinfected root canal. But that fear led somewhere useful — to a p-tau217 baseline test and a consulting engagement with an Alzheimer's prevention company that finally gave me the answer I'd been missing for twenty years.Sitting down to write a research paper on cholesterol and Alzheimer's risk, something clicked: of course my cholesterol is high. My APOE4 genotype makes lipid handling harder. That's not a diet failure. That's a design problem.This episode is the science companion to Episode 5. Where Episode 5 was the lived experience of five years of dietary intervention that barely moved the needle, this episode is the explanation — why cholesterol is a fundamentally different problem for APOE4 carriers, what it actually does in the brain, and why the standard lipid panel isn't giving you the full picture.We cover: what APOE4 actually does to lipid transport, amyloid clearance, neuroinflammation, and tau vulnerability. Why ApoB matters more than LDL for APOE4 carriers — and what the garbage bag analogy actually means for your cardiovascular and brain risk. What Lp(a) is and why you need to test it at least once. Why the connection between cardiovascular risk and Alzheimer's risk isn't two separate conversations for people with this genotype — it's one. And why understanding the mechanism finally made the statin decision obvious.Sarah is six weeks into a statin as of this recording, with no post-statin labs yet. She also has a p-tau217 baseline in — and explains why one result doesn't tell you much, but a trend over time could tell you everything.Show Notes