Hosted by Lily Johnston, MD MPH · 🇺🇸 US · EN · 35 episodes
Established thought leaders with verified media credentials.
"Knife Down" is what a surgeon says in the OR when she puts her scalpel down so no one gets hurt — and it’s the mission here: put the knife down, long before anyone needs to use it. Knife Down is a podcast about how to actually invest in your health so you can live longer, stronger, and with less time in doctors’ offices. The core focus is the world’s leading cause of death—cardiovascular disease—and what to do about it before it shows up as a catastrophe. Hosted by a vascular surgeon on a mission to put herself out of business, the show translates cutting-edge science on prevention, metabolic health, and longevity into real-world strategies you can use in clinic or at your kitchen table. Expect evidence, nuance, and zero wellness hype—plus the occasional dark joke about the state of modern medicine.
Lily Johnston, MD MPH hosts Knife Down, a health show with 35 episodes published.
A live, unfiltered Ask Me Anything on preventive cardiology and metabolic health — recorded on about three hours of sleep after a night in the OR, which tends to make me a little more candid than usual. We cover the ques
Peripheral artery disease Q&A — including one of the biggest mistakes people make when trying to “walk off” PAD symptoms. In this video, we break down: • Why erectile dysfunction is actually a sign of vascular disease •
Got APOE4? Here’s the exact prevention strategy I would use to protect my own brain if I carried this gene. In this video, I walk through the major modifiable dementia risk factors identified by the Lancet Commission — a
What's the optimal ApoB level to reduce Alzheimer’s risk? Is lifestyle or genetics more important? And what does a pTau217 result actually mean for your brain health? In this Brain Health Q&A, I answer your questions abo
If you've been told APOE4 means you're destined for Alzheimer's, the science says something very different. As a vascular surgeon who has spent years treating the end-stages of preventable disease, I want to give you a c
Does lowering LDL cholesterol cause dementia? And how much dementia is actually “vascular” dementia versus Alzheimer’s disease? In this video, I’m answering two viewer questions about dementia, vascular risk, statins, LD
You asked 349 questions about my LDL video. I'm answering the ones that matter most — including who paid for the study. Last week I broke down the LDL cholesterol trial. The comments flooded in — and several of you asked
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 p
Is lower LDL cholesterol actually better for your heart? In this video, I break down the brand-new results from the EZ-Pave study to answer the question that keeps my patients up at night: How low should your cholesterol
I've seen daily aspirin save lives from heart attack — and cause fatal bleeds. As a vascular surgeon, here's my honest take on heart health. The answer isn't yes or no — it depends entirely on who you are. In this video
We hit all the high points today! Nutrition, exercise, lipids, dental health, hormones, and more. We had amazing participation and it was wonderful to have a chance to interact with everyone in real time. Thanks SO much
Plaque reversal is one of the most debated topics in preventive cardiology, so in this video I react to Dr. Kevin Ham’s CAST protocol for plaque reversal: Causes, Adding Cures, Strengthening the Body, and Training the Mi
If you’ve had a positive calcium score (CAC score), you’ve probably asked the obvious next question: when should I repeat it? In this video, I explain why I generally do not order another calcium score if the first one i
Joe Rogan got half a million people talking about what's happening inside their blood vessels. As a vascular surgeon, I've spent my career trying to do exactly that. So when a celebrity does it for me, I pay attention (a
SELECT trial explained: does semaglutide reduce cardiovascular risk because of weight loss, or is something else going on? In this video, I break down the SELECT trial and the follow-up analysis examining whether the car
When people hear “poor circulation,” they often assume the answer is a procedure. Not so fast. In this episode of Knife Down, Dr. Jacqueline Majors and I talk about when opening a blocked artery helps, when it backfires,
Are supplements safe? Not automatically. In this video, I explain why supplements are really drugs, why the industry has so little oversight, which products worry me most, and how I think about using supplements more saf
• Feeling “healthy” is not a screening test. In this episode, Dr. Ford Brewer ( @DrFordBrewer ) tells the origin story: an ER doc who believed he was doing the right things—until he actually checked and found plaque. Tha
Hypertension isn’t a mystery. It’s physics. And it’s quietly remodeling your arteries while you’re out here arguing with your salt shaker. In this reaction to @DrAlexWibberly, I’m mostly nodding along—because he nails th
In this research report deep dive, I walk through a randomized trial that asked a very specific, very modern question: can high-intensity interval training (HIIT) measurably change coronary atherosclerotic plaque—not jus
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Knife Down is hosted by Lily Johnston, MD MPH. The show is categorised under health (fitness) and has published 35 episodes.
Knife Down has published 35 episodes.
Knife Down regularly covers health, fitness, medicine. It sits in the health category, with a fitness focus.
Knife Down is accessible for guests with genuine health expertise. A personalised, episode-aware pitch will still outperform a generic one every time.
Knife Down hasn't explicitly signalled guest openness in recent episodes. That doesn't rule out pitching. your hook just needs to be especially compelling and relevant to their recent content.
Episodes of Knife Down average 39 minutes. a focused format where a clear narrative arc and tight preparation matter most.
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