This Blood Type Trait Linked to Living Past 100—What Science Reveals

For centuries, living to 100 was a rarity—a feat reserved for the luckiest few.

But today, centenarians are the fastest-growing age group in many countries.

So what’s their secret?

A landmark Swedish study dug into decades of health data to find out—and the answers lie in routine blood tests.

The Study That Uncovered Longevity Clues

Researchers analyzed 44,636 people born between 1893–1920, tracking their blood test results for up to 35 years.

Out of the group, 1,224 lived to 100 (85% of them women).

The goal? To see if common blood markers could predict who’d reach extreme old age.

The 12 Biomarkers That Matter

The study focused on everyday lab tests, including:

🩸 Glucose 🩸 Total cholesterol 🩸 Creatinine (kidney function) 🩸 Albumin 🩸 Uric acid 🩸 Iron & iron-binding capacity 🩸 Liver enzymes (AST, GGT, ALP, LD)

The key finding?

Extremes—high or low—reduce odds of reaching 100.

Moderate, stable levels were linked to longevity.

Cholesterol: Not What You’d Expect

❌ Very low cholesterol = lower odds of living to 100 (may signal frailty or hidden illness). ✅ Moderate/high cholesterol = no negative impact on longevity.

Balance matters more than perfection.

Blood Sugar: The Longevity Killer

⚠️ High glucose levels = lower odds of reaching 100.

Chronic high blood sugar damages blood vessels, nerves, and organs, increasing heart disease and stroke risk.

The takeaway: Avoid persistent hyperglycemia.

Kidney & Liver Health: Silent Predictors

🔍 High creatinine (poor kidney function) = lower survival odds. 🔍 Elevated liver enzymes (GGT, ALP, LD) = linked to shorter lifespans (often due to alcohol, liver damage, or metabolic stress).

AST levels followed a U-shaped pattern—too high or too low = worse outcomes.

Uric Acid: The Inflammation Link

⚠️ High uric acid = lowest odds of reaching 100 (linked to gout, kidney stones, and chronic inflammation). ✅ Low uric acid = nearly double the odds of becoming a centenarian.

Inflammation: The Hidden Enemy

In a subset of participants, low CRP (C-reactive protein) = higher odds of living to 100.

Less inflammation = healthier aging.

The Big Picture: Balance Over Extremes

The study didn’t find a “magic number”—just proof that stability wins.

Longevity favors bodies that avoid:

❌ Chronic high blood sugar ❌ Extreme cholesterol levels ❌ Liver/kidney stress ❌ Inflammation

The sweet spot? Middle-range, stable biomarkers over decades.

What This Means for You

While genetics, lifestyle, and luck play roles, your bloodwork offers clues:

✔ Keep glucose in check. ✔ Maintain healthy cholesterol (not too low!). ✔ Protect kidney & liver function. ✔ Manage uric acid & inflammation.

No miracles—just smart, steady health.