Blood Type and Longevity: What Science Actually Says About Reaching 100

adminon
You’ve probably seen headlines like:
“People with blood type O live longer!”
“Blood type A linked to shorter lifespan!”
It sounds intriguing—but here’s the truth most articles won’t tell you:
The famous Swedish centenarian study you referenced didn’t study blood types at all. It examined blood markers (glucose, cholesterol, kidney function)—completely different from your ABO blood type (A, B, AB, O).
Let’s untangle the science—without the hype.
🔬 First: Blood Type ≠ Blood Markers (A Critical Distinction)
Term
What It Means
Example
Blood Type
Your inherited ABO/Rh classification (genetic)
Type O+, Type A-
Blood Markers
Measurable substances in blood (influenced by health/lifestyle)
Glucose, cholesterol, creatinine
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