Cardiovascular health is about more than avoiding a heart attack. It is the condition of your heart, blood vessels, blood pressure, blood sugar, and the metabolic signals that drive damage long before a crisis shows up. A standard cholesterol panel often misses part of the story. Biomarkers are lab measurements that give you a clearer picture of risk, especially when symptoms and standard tests do not line up. This section covers the basics, the better questions to ask, and the tests that deserve a closer look, including The Mitochondrial Biomarker Every Aging Adult Should Understand and The 'Normal' Problem.