Apolipoprotein A1 is a critical biomarker used in assessing the risk of cardiovascular diseases and overall longevity. It is a major component of high-density lipoprotein (HDL) particles and plays a central role in the reverse cholesterol transport pathway. Higher levels of Apolipoprotein A1 are associated with a reduced risk of developing heart diseases and are considered a favorable biomarker for longevity. Studies have shown that individuals with higher Apolipoprotein A1 levels tend to live longer and have better cardiovascular health. Thus, monitoring Apolipoprotein A1 levels can provide valuable insights into an individual’s potential for living a longer and healthier life.