Ep 217 The High Stakes of Cholesterol

July 28, 2026

AI Summary

5 min read

In 1913, a Russian pathologist named Nikolai Anitschkow fed rabbits pure cholesterol dissolved in sunflower oil. Within weeks, the animals developed lesions in their blood vessels that looked exactly like human atherosclerosis. It was a clean, dramatic result—and almost nobody believed it. For decades, the idea that cholesterol could cause heart disease was dismissed, resisted, or simply ignored. It took a century of research, several Nobel Prizes, and a series of massive epidemiological studies to turn the scientific consensus. And even today, the argument is not fully settled.

This episode of This Podcast Will Kill You opens with a firsthand account that makes the stakes visceral. Tori, a young woman with familial hypobetalipoproteinemia, describes growing up knowing her father was different—he walked with a limp, spoke oddly, and had suffered a heart attack and stroke when she was a baby. Her grandfather died at 45. Her sister died at 25, three weeks before her birthday, from a sudden cardiac event. Tori's own cholesterol was 232 at age 14. She is now on statins, her cholesterol is 197, and she lives with the constant, quiet fear that this could happen to her too. "It's just kind of this constant worry that this might happen and a lot sooner than you think," she says.

What Cholesterol Actually Is and Why We Need It

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What you'll learn

1 (01:46) **First-Hand Account: Living with Familial Hypercholesterolemia** - Tori describes growing up with a father who had a heart attack and stroke, and the discovery of her own high cholesterol at age 14.
2 (06:48) **Episode Introduction and Overview** - The hosts announce a two-part series on cholesterol, with this episode covering what cholesterol is and its role in disease, and the next episode focused on statins and treatment.
3 (11:57) **What Is Cholesterol?** - A detailed explanation of cholesterol as an essential lipid molecule, its chemical structure, and its critical biological functions.
4 (14:54) **How Does the Body Transport Cholesterol?** - The hosts explain the creation and transport of cholesterol via lipoproteins, including VLDL, LDL, and HDL.
5 (20:04) **What Controls LDL and HDL Levels?** - The hosts discuss the genetic and dietary factors that influence the balance of different cholesterol packages in the blood.
6 (22:56) **When Cholesterol Becomes a Problem: The Numbers Game** - The explanation of how high LDL leads to atherosclerosis, including the inflammatory response and plaque formation.
7 (27:41) **Hard Numbers and Risk Factors** - The hosts provide concrete LDL and total cholesterol targets and discuss how age and diet influence these levels.

+ Full timestamped outline available in the app

Show Notes

So your latest blood test results have come in, and you see a couple of numbers for cholesterol. What do those numbers mean, and why do we care about them? In this first part of our cholesterol miniseries, we break down the science behind this compound and trace how we made the link between certain types of cholesterol and heart disease. First, we follow the path that cholesterol takes in our bodies and what LDL and HDL mean in the context of heart disease. Then we delve into the history of this compound, which involves an over 2 billion year journey back in time, fascinating experiments that revealed the stubborn nature of medicine, and a terrible - but hopefully memorable - baseball analogy. Tune in for the low down on cholesterol.

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