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99% of Heart Attacks Had This Prior Warning

2026-05-01 People & Blogs
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Dr Brad Stanfield
Dr Brad Stanfield
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🩺 Get your personalized health plan: https://drstanfield.com 💊 Supplements I Take: https://drstanfield.com/pages/my-supplements 💊MicroVitamin+ (Pro) Powder: https://drstanfield.com/products/microvitamin-plus 💊MicroVitamin Standard Capsules: https://drstanfield.com/products/microvitamin ✔️ X: https://x.com/BradStanfieldMD ✔️ Patreon: https://www.patreon.com/bradstanfieldmd Timestamps: 00:00 The SMURF-less Phenomenon 02:27 New Approach to SMURF-less Heart Attacks 03:59 The Contradiction Between Two Bodies of Research 07:41 The Methodological Gap 10:25 The Empowering Interpretation of the Data 11:12 The Real Villain in the Story 13:03 The Importance of ApoB Testing Here are the links to the research papers referenced in the video: https://pmc.ncbi.nlm.nih.gov/articles/PMC7237076/ https://pubmed.ncbi.nlm.nih.gov/36179904/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6898813/ https://www.jacc.org/doi/10.1016/j.jacc.2025.07.014 https://pubmed.ncbi.nlm.nih.gov/34450083/ https://www.ahajournals.org/doi/10.1161/01.hyp.34.1.51 https://www.journal-of-cardiology.com/article/S0914-5087(23)00286-1/fulltext https://www.tctmd.com/news/risk-factors-present-nearly-all-patients-who-develop-cvd https://en.wikipedia.org/wiki/Jim_Fixx https://www.recordonline.com/story/sports/2004/08/25/runners-heed-cholesterolcounts/51131216007/ https://time.com/archive/6855620/medicine-why-joggers-are-running-scared/ https://www.upi.com/Archives/1984/07/23/Running-guru-Jim-Fixx-who-collapsed-and-died-of/2268459403200/ https://www.si.com/track-and-field/2020/05/21/jim-fixx-legacy-running-coronavirus https://www.ahajournals.org/doi/10.1161/CIR.0000000000001423 https://jamanetwork.com/journals/jama/fullarticle/2847303 https://www.hcplive.com/view/expert-insights-lp-a-and-apob-in-the-2026-dyslipidemia-guidelines Thumbnail by James Kelly Video edited by Troy Young Script by John Milliken The links above are affiliate links, so I receive a small commission every time you use them to purchase a product. The content contained in this video, and its accompanying description, is not intended to replace viewers’ relationships with their own medical practitioner. Always speak with your doctor regarding the content of this channel, and especially before using any products, services, or devices discussed on this channel.

Top Comments (10)

@jackpayne4658 2026-05-01

I recall reading that Jim Fixx had inherited a serious heart defect from his father - who died nine years younger than his son. You could argue that Jim Fixx's running gave him an extra nine years of life.

162 19 replies
@philnull 2026-05-01

The fitness market is dominated heavily by endurance athletes and bodybuilders, both are extremes. Ideal fitness for the sake of longevity is a balance of all modalities, not extremes.

131 8 replies
@bw4611 2026-05-01

I don’t understand why a CIMT imaging test (no radiation, and detects both soft and calcified plaque in arteries), isn’t just a first line preventative test when someone hits 40, and then recommended every 2-4 years thereafter. It would prevent so much of this, it’s non-invasive and not very expensive.

78 46 replies
@Noegzit 2026-05-02

I get your point, but running what amounts to ~10 miles a day isn’t exactly a typical “healthy baseline” — that’s a high training load.

54 4 replies
@natesofamerica 2026-05-01

10 miles a day isn't doing everything right, that's like if drinking 6 liters of water a day were "doing everything right". I guess this guy's life served as the prime example of where the line for overdoing it is.

42 16 replies
@andrewzhuk8713 2026-05-01

Running 10 miles a day is far from "doing it right"

42 7 replies
@saliksayyar9793 2026-05-01

Wrong his LDLc was 178 mg/dl!!!. Is that normal cholesterol in your book? Jim Fixx's autopsy revealed that he had significant blockages in his coronary arteries: 95% blockage in one artery, 85% in another, and 70% in a third, which contributed to his heart attack at the age of 52. His genetic predisposition and previous lifestyle factors, including a history of smoking, were also significant contributors to his heart issues.

26 3 replies
@pat557 2026-05-01

Jim Fixx bragged about how he could eat fast food yet remain trim due to exercise. Oops...

22 3 replies
@dontrend5956 2026-05-01

Fixx started running in 1967 at age 35. At that time, he weighed 240 pounds and smoked two packs of cigarettes per day. Ten years later, when his Complete Book of Running was published, he had taken off more than 70 pounds and had given up smoking. He used himself as an example of how healthy a person can be after changing to a healthful lifestyle. However, his autopsy showed that what was inside his body was much different from what appeared on the outside. The three main arteries leading to his heart were almost completely blocked with plaques, and his other arteries were filled with plaques as well. The autopsy also showed that he had at least three heart attacks in the weeks before the one that killed him. At that time I did not know, Jim Fixx did not know, and Jim Fixx’s doctors most likely did not know that Jim Fixx was probably an out-of-control diabetic. If you take a look at the American Express commercial shot in 1979, five years before his death, you will see that he has a large belly and small buttocks. Almost everyone who has these features is diabetic because they store most of their fat in their liver and a liver full of fat is a common cause of diabetes.

22 1 replies
@DrBradStanfield 2026-05-01

All 16 studies referenced in the video are linked in the video's description 🩺 Get your personalized health plan: https://drstanfield.com 💊MicroVitamin (multivitamin & mineral that I take): https://drstanfield.com/products/microvitamin

4 5 replies

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