What is apoA?
ApoA (apolipoprotein A) is a protein carrier for HDL. apoA is considered to be the most informative biomarker for “good cholesterol.”
Why is it included in the Cardiovascular Axis?
Both HDL cholesterol and apoA-I are in most clinical conditions antiatherogenic- the higher the values, the lower the cardiovascular risk. Your apoA measurement can be an important predictor of your cardiovascular health. 
How can I better understand my results?
- optimal: greater than or equal to 140 mg/dL.
Where can I learn more?
Peter Attia, M.D. provides valuable context around apoA