Knife Down

By Lily Johnston, MD MPH

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Category: Medicine

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Episodes: 33

Description

 "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.


Episode Date
Half of Alzheimer's Patients Carry APOE4 - You Don't Have to Be One of Them
May 18, 2026
LDL Study Q&A: kidney damage, NNT, and funding sources
May 14, 2026
Can Low LDL Cause Dementia? Your Questions Answered
May 14, 2026
Is Ezetimibe the Secret to Preventing Dementia? Surgeon Reacts to Nick Norwitz MDPhD ​
May 11, 2026
Is Lower LDL Actually Better? New Research Has an Answer
May 04, 2026
The Truth About Aspirin and Heart Attack Prevention
Apr 27, 2026
Ask Me (Almost) Anything With Dr Johnston | Live Q&A
Apr 20, 2026
Is Your Candle Slowly Poisoning You? Vascular Surgeon Reacts to Joe Rogan
Apr 13, 2026
I'm a Vascular Surgeon — Stop Getting Repeat CAC Scans. Here's Why
Apr 13, 2026
Can You Unclog Arteries? A Vascular Surgeon Reacts to Dr Kevin Ham ​
Apr 13, 2026
GLP-1 Drugs Cut Heart Attack Risk — And It Has Nothing to Do With Weight
Mar 30, 2026
What We Get Wrong About Poor Circulation (with Vascular Surgeon Dr. Jackie Majors)
Mar 23, 2026
They Don’t Want You Well. They Want You Worried.
Mar 08, 2026
When "Healthy" Is a Lie: @DrFordBrewer on Insulin Resistance, Hidden Plaque & His Prevention Pivot
Mar 02, 2026
Hormones, Hot Flashes, & Heart Disease: Your Doctor Didn't Tell You THIS
Mar 02, 2026
Are We Treating Cholesterol Completely Wrong? | Vascular Surgeon Explains
Mar 02, 2026
5 Things I've Learned On Call as a Surgeon
Mar 02, 2026
My First No Incision Bypass | Advanced Treatment for Arterial Blockages
Mar 02, 2026
1 in 5 People Have This — And Most Never Get Tested
Mar 02, 2026
A Meal to Unclog Arteries? Watch This First (Dr. J Reacts to @LeonidKimMD )
Mar 02, 2026
High Lp(a)? Here's What Works (And What Doesn't)
Mar 02, 2026
The Cholesterol Myth That Won’t Die – A Vascular Surgeon Reacts to @Physionic ​
Mar 02, 2026
New Drugs Cut Lp(a) Over 90%...Will They Prevent Heart Attacks?
Mar 02, 2026
ChatGPT’s Medical Reply - Vascular Surgeon Fact Check!
Mar 02, 2026
My CIMT Walkthrough: How I Spot Plaque in 30 Minutes or Less
Mar 02, 2026
HIIT vs Heart Plaque: Randomized Trial Deep Dive
Mar 02, 2026
The Blood Pressure Myth That Won't Die: A Vascular Surgeon Reacts to @DrAlexWibberley ​
Mar 02, 2026
7 Life-Saving Tests Your Doctor Might Skip!
Mar 01, 2026
Amputations Broke My Heart. So I Changed Everything.
Mar 01, 2026
What a Vascular Surgeon REALLY Does (And How to Never Need One) | Lily Johnston, MD
Mar 01, 2026
5 MORE Tests That Reveal What's Really Happening Inside Your Body
Mar 01, 2026
The Scan That Reveals Heart Disease Years Before Symptoms
Mar 01, 2026
3 Myths About Menopause & Heart Health — A Surgeon Explains
Mar 01, 2026