Heart problems after COVID vaccine exposure deserve an investigation that admits the correlation.  Who still has symptoms? What do the scans show months later? Calling an injury “rare” answers none of those questions.

In the MACiV study of 333 young patients with vaccine-associated myocarditis, researchers reported persistent signs of myocardial injury on follow-up MRI in 60% of those assessed. They also reported generally favorable mid-term outcomes, with no cardiac deaths or transplants at the time of submission. Is that true? You would need to follow the patients for years to properly assess. You would need to admit that damage has been done and take steps to properly heal.

The heart carries us through our work, our relationships, our lives. You know B.C. (Before Coronavirus); when we were still somewhat normal. Informed consent means being able to question an intervention, understand its risks, and expect answers when something goes wrong. So let’s begin by examining the original research on how myocarditis risk differs by age, sex and vaccine dose—and follow the evidence wherever it leads.

The warning was updated. The follow-up question remained.

On June 25, 2025, the FDA required updated myocarditis and pericarditis warnings for Pfizer’s Comirnaty and Moderna’s Spikevax. Myocarditis affects the heart muscle; pericarditis affects the surrounding lining.

I tried to warn folks. I lost a lot in the process. Maybe you did too? Maybe you are injured.

My own niece had a mild case of myocarditis. My mom kept it from me. My family pretty much works for Big Pharma. Yet another irony that laces my life. That brings the conversation painfully close to home. “Mild” may describe the clinical assessment; it does not erase a family’s concern. And how quickly “died suddenly” became normalized.

I also covered Travis Scott’s Astroworld disaster for The Tenpenny Report. The medical provider reported treating 11 people in cardiac arrest at once. That is a horrifying scene. The subsequent medical examiner’s findings attributed the ten deaths to compression asphyxia. Sounds like a similar argument involving George Floyd.

I tried to warn people. I lost a lot in the process. Maybe you did too. Maybe you are injured. Maybe someone you love is still looking for answers.

The pushback against my work is documented. In May 2023, Smashwords closed my entire account, citing its policy against allegedly injurious material, and refused to reopen it. I challenged that decision. My “How to Detox from the COVID-19 Vax” guide remains available on my website. You can read what I wrote and judge it for yourself.

For the 2023–2024 mRNA formulations, insurance claims yielded approximately 8 cases per million doses among recipients aged six months through 64, and 27 per million among males aged 12–24, during days 1–7. These were unadjusted observed rates, not excess cases attributable to vaccination. Read the FDA’s warning and estimates.

The same communication described the follow-up of approximately 300 people with vaccine-associated myocarditis. Among those with repeat cardiac MRI, abnormalities indicating myocardial injury commonly remained around five months after vaccination. Some improved; others did not. Their long-term clinical significance was unknown.

That leaves a specific question: which persistent abnormalities predict later illness? These records cannot establish either universal recovery or permanent disability.

A population average can conceal a higher-risk subgroup

A 2022 Circulation study covering 42.8 million vaccinated people in England examined hospital admission or death with myocarditis during days 1–28 after vaccination or a positive SARS-CoV-2 test.

For men younger than 40, estimated excess events per million were 97 after a second Moderna dose versus 16 after a positive test. The respective 95% confidence intervals were 91–99 and 12–18. Overall, the authors found a higher risk of myocarditis after infection, while identifying younger men receiving a second Moderna dose as an important exception. Read Patone and colleagues’ original study.

These historical results cannot be treated as estimates for every formulation, age group, or variant. A useful risk statement must identify the product, dose, population, and time window.

The infection record extends beyond myocarditis

A 2022 Nature Medicine study compared 153,760 US veterans who survived COVID’s first 30 days with more than 5.6 million contemporary controls. Researchers estimated the following additional diagnoses per 1,000 people at 12 months, beginning after the acute phase. Read the original study and outcome estimates.

Outcome	Estimated excess per 1,000
Heart failure	11.61
Atrial fibrillation	10.74
Pulmonary embolism	5.47
Deep vein thrombosis	4.18
Stroke	4.03
Heart attack	2.91
Pericarditis	0.98
Cardiac arrest	0.71
Myocarditis	0.31

The cohort was predominantly older and male, with infections occurring before the Omicron wave. These adjusted observational associations are not a forecast for every person infected today. Outcomes overlap, so the rows must not be added to count injured people.

The evidence that complicates a simple indictment

A 2024 study of 45.7 million English adults examined cardiovascular events for up to 26 weeks after vaccination. Rates of common arterial and venous thrombotic events were generally lower after vaccination. The study also detected recognized rare complications: myocarditis and pericarditis after mRNA vaccines, and vaccine-induced thrombocytopenia after the first dose of the AstraZeneca vaccine.

Its observational design leaves room for residual confounding. Still, its findings belong in any investigation claiming to weigh the cardiovascular record. Selecting only results that support one conclusion would misrepresent the evidence.

What the records establish—and what they leave open

The documents support scrutiny of both infection-related cardiovascular disease and recognized vaccine injuries. They do not justify assigning every subsequent heart attack to either exposure.

The next questions are concrete: How do risks change with newer formulations, reinfections, and prior immunity? Which patients with abnormal scans develop lasting impairment? How complete is the follow-up after discharge?

Those questions require longer observation and comparable populations. For readers assessing any alarming statistic, the first check is straightforward: find the denominator, the comparison group, and the observation period. Without them, even an accurate number can tell a misleading story.

Your heart works around the clock. What are you doing to support it? Healthy circulation depends partly on the endothelium—the delicate layer of cells lining your blood vessels—and its ability to produce nitric oxide, a molecule that helps vessels relax and blood flow. Cardio Miracle brings together L-arginine, L-citrulline, beetroot, and antioxidant nutrients in a drink formulated to support that nitric-oxide pathway. The appeal is practical: daily nutritional support for cardiovascular wellness in one glass. It is not an established treatment for myocarditis or vaccine injury; anyone managing a heart condition should review the formula with their clinician. Explore Cardio Miracle here—and when you purchase through HoneyColony’s affiliate link, we earn a commission that helps sustain this independent publication.

Affiliate disclosure: HoneyColony earns a commission from purchases through our Cardio Miracle link.