Inflammation and Heart Disease
Welcome to another edition of the Doctor's Note where we talk about what's on our minds when it comes to your health.
This week I had the pleasure of sitting down again with my friend, cardiologist Dr. Dan O'Roark, to continue our conversation about heart disease. This time, we took a closer look at inflammation and why we need to think beyond cholesterol numbers when evaluating cardiovascular health. Dr. O'Roark did a great job explaining what happens inside our arteries when inflammation damages the inner lining, allowing substances to enter the artery wall and contribute to plaque formation. He used a simple cheesecloth analogy to help us understand how that protective lining can become more permeable when damaged. We also talked about how everyday factors like stress, poor oral health, and the standard American diet can contribute to chronic inflammation. It's another reminder that heart disease is more complicated than a single cholesterol number, and we need to be looking at the whole picture.
We also spent some time discussing testosterone and the long-standing belief that testosterone replacement therapy increases the risk of heart attacks. The TRAVERSE trial has given us important new evidence about its cardiovascular safety in men with low testosterone, challenging some of the concerns that have surrounded hormone replacement for years. Dr. O'Roark and I discussed why healthy hormone levels matter for both men and women, and how environmental toxins and certain medications, including high-dose statins, may affect hormone production. We also touched on the roles of vitamins D and K2 in overall health. Medicine continues to evolve, and we have to be willing to question old assumptions, follow the evidence, and treat the whole patient rather than focusing on isolated lab numbers.
PODCAST NOTES
Inflammation is the main driver behind most cardiovascular disease, not just high cholesterol levels. The process begins with damage to the arterial endothelium, the single-cell layer lining blood vessels, which becomes permeable like cheesecloth and allows toxins and waste products to enter the deeper layers of the vessel wall. This sets off a chronically inflamed state, which not only contributes to heart disease but is also implicated in cancer and many other illnesses.
The location and nature of plaque buildup in arteries has been misunderstood for decades. Plaque doesn’t merely sit on the surface of the artery but instead forms deeper within the vessel wall (the mesothelium), patching up the damage from within. The body actually uses cholesterol as a kind of emergency fix to "patch the pothole" caused by inflammation—not as the initial villain in heart disease.
Oral health is intimately connected with heart health. Dr. O'Roark highlighted his own experience with poor dental hygiene during his medical training and explained how chronic gum inflammation introduces bacteria into the bloodstream (“microbacteremia”) every time we chew. Over time, this ongoing cycle of minor infection and inflammation directly increases the risk of arterial disease.
Chronic stress has far-reaching effects, raising cortisol and keeping the body in a state of constant inflammation. This is more than just a nuisance—it’s a legitimate medical risk factor on par with poor diet or lack of exercise. Recognizing stress and addressing underlying issues, even those rooted in childhood trauma, can make a profound difference in cardiovascular and overall health.
The myth that testosterone replacement therapy causes heart attacks or blood clots is not supported by current evidence. Large, recent studies like the TRAVERSE trial have demonstrated that testosterone, when managed properly, does not increase cardiovascular risks. In reality, low testosterone levels pose more dangers to heart and overall health, and both men and women need optimal levels for lifelong wellness.
Statin medications, commonly prescribed to lower cholesterol, can reduce cholesterol so much that it hampers the body’s ability to manufacture crucial hormones. Testosterone, vitamin D, estradiol, and even cortisol are all made from cholesterol. When you drive cholesterol levels too low with high-dose statins, hormone production plummets, leaving patients at risk for a cascade of other health issues, including low energy, osteoporosis, and weakened immunity.
Vitamin D should be treated as a critical hormone, not just a simple supplement. Maintaining vitamin D levels in the 50-100 range is ideal, especially for immune and cardiovascular health, but supplementation needs to be combined with vitamin K2. K2 ensures that calcium driven by vitamin D is deposited into bones, not the arteries or joints, thus preventing vascular calcification and further heart risk.
Sunshine, sometimes unfairly blamed for cancer, is essential for healthy vitamin D levels. Sensible sun exposure is healthy—most skin cancers are not directly caused by sunlight. Meanwhile, excessive sunscreen use and sun avoidance can leave us vitamin D deficient. Dr. Dan O'Rourke shared that as long as you avoid burning, sun exposure is beneficial, and supplementing with K2 and niacinamide can further protect your skin and cardiovascular system.
Dr. O'Roark and I both want to leave you with this reminder: we have to look at the whole person when it comes to our health. Pay attention to inflammation, manage your stress, take care of your dental health, and don't be afraid to ask questions about your hormones or heart health. Find providers who look at the big picture, stay current with the research, and are willing to question conventional thinking.
If you value whole-person, common-sense medicine, keep tuning in, share these conversations with the people you love, and most importantly, take small, proactive steps every day toward better health.
Stay educated. Stay healthy.
Till next week.
