Topic: Health

Scientists have found a way to identify people who live to be 100 or older. They looked at blood samples from these people and found certain patterns that could help us understand how they stay healthy for so long.

People who live to age 100 and beyond often owe their exceptional longevity to a mix of protective genes and healthy habits.

Researchers estimate that genetics account for as much as 50% of the ability to reach extreme old age, while lifestyle factors such as eating a plant-forward diet, staying physically active through regular natural movement, and maintaining strong social relationships also play an important role.

A new study from the Boston University Chobanian & Avedisian School of Medicine has now identified a distinct pattern of blood metabolites in centenarians that appears to represent more than simply growing older. The researchers found that people who reached 100 years of age had unusually high levels of certain primary and secondary bile acids along with preserved levels of several steroids.

These metabolic patterns differed from those seen during typical aging and were associated with a lower risk of death. The study's lead author, Stefano Monti, PhD, explains that their findings point to measurable chemical fingerprints in the blood that are associated with living a very long and healthy life.

Why It Matters

This research could help us understand how to stay healthy as we age and potentially identify new ways to prevent age-related diseases. It's especially relevant for India, where the population is aging rapidly and there is a growing need for effective healthcare solutions.

Key Facts

• Scientists studied blood samples from 213 people who lived to be 100 or older and found distinct patterns of metabolites that were associated with healthy aging.
• The study found that genetics play a significant role in reaching extreme old age, accounting for up to 50% of the ability to live to 100 or older.
• The researchers identified certain primary and secondary bile acids and steroids as key markers of healthy aging.
• The study's findings suggest that these metabolic patterns could be used to identify people at higher or lower risk of age-related decline.
• The research was published in the journal GeroScience in March 2026.

Key Terms

Metabolomics

The study of how cells and organisms process and respond to different substances, such as nutrients and toxins.

Bile acids

Substances produced by the liver that help break down fat in the digestive system.

Implications

This research could help us understand how to stay healthy as we age and potentially identify new ways to prevent age-related diseases. It's especially relevant for India, where the population is aging rapidly and there is a growing need for effective healthcare solutions.