The 5 Most Important Labs for Brain, Heart, and Longevity

Most people get blood work every year, but few understand which numbers actually matter for long term brain and heart health. In this video, Dr. David Jockers explains the five lab tests he relies on most to assess metabolic health, inflammation, and longevity.

He walks through fasting insulin, hemoglobin A1C, triglyceride to HDL ratio, homocysteine, and C reactive protein, and explains what each one reflects inside the body. You will learn how blood sugar regulation, fat metabolism, nutrient status, and inflammation show up in these markers, and why standard reference ranges often miss early warning signs. Dr. Jockers also explains how these labs relate to mitochondrial function, oxidative stress, blood vessel health, and cognitive resilience. The focus is on understanding patterns, not just isolated numbers, so you can see how brain health, heart health, and longevity are connected through metabolism and inflammation.