The Clot Thickens

"The diet-heart hypothesis, like any hypothesis, has to rest on a basic understanding of the science underlying it.

"The diet-heart hypothesis, like any hypothesis, has to rest on a basic understanding of the science underlying it. In this case it came into being purely through the process of reverse engineering." Flawed foundations. The cholesterol hypothesis was built on misinterpreted evidence and flawed studies. LDL cholesterol does not simply "leak" into artery walls, as the endothelium forms a tight barrier. Many populations with high cholesterol levels have low rates of heart disease, and vice versa. Misguided focus. Decades of research and billions of dollars have been spent trying to lower cholesterol levels, with minimal impact on cardiovascular disease rates. This misguided focus has diverted attention and resources from more significant risk factors and potential interventions. Industry influence. The pharmaceutical and food industries have heavily promoted the cholesterol hypothesis to sell statins and low-fat foods. This has created a powerful financial incentive to maintain the status quo, despite mounting evidence against it.

"Thromboembolic material is therefore sufficient on its own to induce plaque formation." Clot formation. When the endothelium is damaged, blood clots form to cover the injured area. These clots can then be incorporated into the artery wall, forming the basis of atherosclerotic plaques. Plaque composition. Atherosclerotic plaques contain fibrin, platelets, red blood cells, and other components of blood clots. The cholesterol found in plaques likely comes from red blood cells, not LDL particles. Historical evidence. Early researchers like Karl von Rokitansky proposed the "encrustation hypothesis" in the 1850s, suggesting that plaques were the result of blood clots. This idea was largely forgotten as the cholesterol hypothesis gained dominance.

"The endothelium, with its diversity of physiological functions is a main target of bacterial toxins." Endothelial barrier. The endothelium forms a critical barrier between the bloodstream and artery walls. Damage to this barrier is the first step in atherosclerosis development. Protective glycocalyx. The glycocalyx, a gel-like layer covering endothelial cells, plays a crucial role in protecting the endothelium. Factors that damage or strip away the glycocalyx increase CVD risk. Nitric oxide production. Healthy endothelial cells produce nitric oxide, which has numerous protective effects: Dilates blood vessels Prevents blood clot formation Reduces inflammation Inhibits smooth muscle cell proliferation

"Upwards of 40-60% of depressed patients experience hypercortisolemia [high blood cortisol levels] or other disturbances of the HPA system." Chronic stress impact. Prolonged psychological stress dysregulates the hypothalamic-pituitary-adrenal (HPA) axis, leading to: Elevated cortisol levels Insulin resistance Endothelial dysfunction Increased inflammation Mental health connection. Conditions like depression, anxiety, and PTSD are associated with significantly increased CVD risk, often mediated through HPA axis dysfunction. Social factors. Socioeconomic status, social isolation, and lack of support networks contribute…