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Integrative Health

People Who Live to 100 Share These 3 Biological Factors

Author: Ava Durgin

April 14, 2026

Assistant Health Editor

By Ava Durgin

Assistant Health Editor

Ava Durgin is the former Assistant Health Editor at mindbodygreen. She holds a B.A. in Global Health and Psychology from Duke University.

Image by Evgenij Yulkin / Stocksy

April 14, 2026

Centenarians have become something of a modern benchmark for longevity, a word we hear more and more as the search for a longer, healthier life accelerates. Many of us wonder what it actually takes to make it into our 100s, a milestone that once felt rare and now feels increasingly within reach.

From the Mediterranean diet to strong social ties and consistent daily movement, research has started to map out the lifestyle patterns that show up again and again in people who live the longest. But a new study takes things a step further, asking a different question entirely.

Beyond lifestyle, what actually looks different inside the bodies of people who reach 100?

The biology of exceptional aging

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To explore that question, scientists analyzed blood samples from three groups: adults in midlife, people in their 80s and early 90s who were receiving hospital care, and a rare group of centenarians who had reached around 100 years old.

Rather than looking at genes alone, the researchers focused on the blood’s protein landscape. Proteins are where genetic instructions turn into action, influencing inflammation levels, metabolism, immune activity, and cellular repair. In total, they measured hundreds of proteins tied to cardiovascular and immune health, essentially building a detailed snapshot of biological aging across the lifespan.

The goal wasn’t just to see which proteins changed with age, but to identify whether centenarians showed a distinct pattern, something that might explain how they’ve managed to reach such extreme ages with relatively preserved function.

What centenarians’ blood revealed about aging

What stood out wasn’t that centenarians had completely different biology. It’s that parts of their biology looked unexpectedly familiar, more like younger adults than people even two decades younger.

Out of hundreds of proteins analyzed, a small subset showed a “youth-like” pattern in centenarians. These proteins were tied to systems that matter deeply for long-term health, including inflammation control, metabolic balance, cellular cleanup, and structural integrity of tissues.

One of the most consistent themes was inflammation. Centenarians showed more regulated immune activity, particularly in proteins that normally rise with chronic, low-grade inflammation as we age. This matters because long-term inflammation is closely linked to conditions like cardiovascular disease, metabolic dysfunction, and cognitive decline.

Another key pattern involved oxidative stress, the kind of cellular wear and tear that builds up over time. Instead of showing higher levels of damage control after the fact, centenarians appeared to maintain lower baseline oxidative stress overall. In other words, their biology seemed less “damaged” to begin with, rather than just better at repairing damage.

Metabolic stability also stood out. Proteins involved in insulin signaling and blood sugar regulation remained more balanced in the centenarian group, hinting at steadier metabolic control across decades of life.

It’s not that centenarians have entirely different biology, but that key systems tied to inflammation, energy regulation, and cellular stress seem to stay more stable over time.

What this means for how we think about aging

It’s easy to read studies like this and assume they’re pointing toward something genetic, something out of reach. And yes, genetics do matter. But what’s important here is how strongly these protein patterns overlap with lifestyle-related systems, things like inflammation, metabolic health, and oxidative stress that are shaped every day by how we live.

This is where the research becomes more relevant for everyday life. The biology seen in centenarians doesn’t appear overnight. It reflects decades of relatively steady internal balance. And while no one can replicate a centenarian profile exactly, the pathways involved are influenced by familiar behaviors, like what we eat, how we move, how consistently we sleep, and how often our bodies are in a stressed, inflamed state.

RELATED READ: What Brazilian Supercentenarians Can Teach Us About Living To 110

The takeaway

What this research really underscores is how unglamorous longevity can be. It doesn’t seem to hinge on extreme protocols, but on the more consistent factors that shape health over time, things like inflammation levels, metabolic balance, and how much stress the body is carrying day to day.

turmeric ginger+

Your daily essential for joint & muscle health*