Blood Type and Longevity: Do Certain Types Help You Reach 100? What Science Really Says

For decades, scientists have searched for clues in genes, habits, and even blood types. And while no single factor guarantees a century of life, emerging research—including a landmark Swedish study—suggests that routine blood markers (and possibly blood type) may offer surprising insights into who’s more likely to become a centenarian.

🔬 The Swedish Study: Can Midlife Blood Tests Predict Longevity?

Researchers analyzed health data from 44,637 people in Stockholm County (born 1893–1920), tracking them for up to 35 years. Of these, 1,224 reached age 100—85% of them women, consistent with global longevity trends.

But the real discovery?

Blood tests taken decades earlier—in their 60s, 70s, or 80s—revealed patterns that distinguished future centenarians from others.

✅ Key Blood Markers Linked to Exceptional Longevity

People who reached 100 were more likely to have, in mid-to-late life:

Lower glucose levels → better metabolic health, reduced diabetes risk

Lower creatinine → healthier kidney function

Lower GGT & ALP (liver enzymes) → less liver stress/inflammation

Higher albumin → better nutrition and protein status

Optimal cholesterol → not too high, not too low

🩺 Takeaway: It’s not about perfection—it’s about balance across multiple systems.

💉 What About Blood Type? The Evidence So Far: