New study finds 1 small organ may play vital role in longevity

Researchers use AI to uncover how a chest gland shapes long‑term health outcomes.

Illustration: Inc.; [Photo: Getty Images]

Your upper chest could be the key to your long-term health. A new study found a correlation between the health of a human’s thymus and the likelihood of cardiovascular disease or cancer. 

Published on Wednesday in the science journal Nature, researchers detailed the “crucial” effect of the thymus on long-term health and lifespan, reshaping prior assumptions about the organ. 

“These findings reposition the thymus as a central regulator of immune‑ mediated aging and disease susceptibility in adulthood,” the report states. 

Thymus health a key indicator

Using AI tools, scientists analyzed more than 27,000 patient scans and medical records to evaluate thymus health. According to the journal, people with high thymic health had a mortality rate of 13.4 percent, compared with 25.5 percent among those with low thymic health. 

The thymus, a two-lobed gland sitting in the upper chest between the lungs, is responsible for T-lymphocytes, white blood cells that protect the body against pathogens and diseases.  

Throughout the years, the thymus “decays with age,” turning a once enlarged organ for health into fatty tissue replacement as it shrinks. 

The report added that 5.3 percent of people with low thymic health developed lung cancer, and that 16.7 percent of people with low thymic health developed cardiovascular disease.  

cardiovascular disease

Talking techie typeface with Fast Company's creative director

© Fast Company