In other words, there is no scientifically established blood type that guarantees or strongly predicts a longer life.
Genetics: the real foundation of longevity
While blood type is genetic, it represents only a tiny fraction of the human genome.
True longevity-related genetics involve complex interactions between thousands of genes that affect:
DNA repair
Inflammation levels
Metabolism
Immune system function
Cellular aging
Some people inherit genetic advantages that make them more resilient to age-related diseases. Others may have genetic variations that increase risk.
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However, even strong genetic advantages do not guarantee long life. They simply influence probabilities.
Many researchers agree that genetics may account for roughly 20–30% of lifespan variation, while environmental and lifestyle factors make up the rest.
Lifestyle has a much larger impact
When studying long-lived populations around the world, researchers consistently find that lifestyle plays a major role.
Common traits among people who live longer include:
1. Balanced diet
