Does Your Blood Type Affect Your Chances of Living to 100?
You may have seen claims that one blood type is especially likely to reach age 100. The evidence is much less definitive than those headlines suggest.
Your ABO blood group is associated with differences in the risk of certain diseases. For example, non-O blood groups (A, B, and AB) have been associated in some research with a somewhat higher risk of blood clots and certain cardiovascular conditions than blood group O. But this does not mean that people with type O—or any other blood type—are destined to live longer.
What matters much more for longevity?
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Not smoking
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Regular physical activity
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A nutritious, predominantly whole-food diet
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Maintaining healthy blood pressure and blood sugar
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Maintaining healthy social connections
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Getting appropriate preventive healthcare
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Managing chronic conditions effectively
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Having adequate sleep
Bottom line: Blood type is one small biological characteristic, not a reliable predictor of whether someone will reach 100. Lifestyle, genetics, environment, medical care, and chance all play much larger roles in longevity.
