Author: Eleanor Garth  |  Published on: September 23, 2025  |  Last updated: September 23, 2025

What if one simple blood test could tell you which parts of your body are aging faster than others?
That’s exactly what new research from Yale University, featured in Longevity. Technology has made it possible.

Scientists have developed a test that measures the biological age of 11 major organs, including the brain, heart, lungs, and kidneys, by analyzing protein and DNA patterns in blood.
The surprising result? Our organs don’t age at the same pace, and knowing which ones are “older” could help us prevent disease before it starts.

Key Points

• Researchers built a blood test that measures aging in 11 organs using AI and protein analysis.

• Each organ has its own biological age, which can differ from your actual age.

• Faster organ aging predicts higher disease risk. Brain aging links to Alzheimer’s, heart aging to heart failure, and so on.

• Around 1 in 5 people shows accelerated aging in at least one organ.

• A younger brain age is closely tied to a longer lifespan.

• This test could guide personalized health plans, early detection, and targeted anti-aging treatments.

• Researchers stress that more testing is needed before it becomes part of everyday healthcare.

This breakthrough brings medicine one step closer to truly personalized longevity, helping us focus not just on how long we live, but how well each part of us ages.