Centenarians, individuals who live to be 100 or older, are the fastest-growing demographic group worldwide. Research on longevity has revealed the importance of blood biomarkers in understanding the aging process. A recent study analyzed data from 44,000 Swedes aged 64 to 99, uncovering key insights into the blood profiles of those who reached 100 years old. Lower levels of glucose, creatinine, and uric acid were linked to exceptional longevity, highlighting the significance of metabolic health. Additionally, the study found correlations between cholesterol levels, liver function, and the likelihood of living past 100. While lifestyle factors and genetic predispositions also play a role in longevity, monitoring and managing key biomarkers could be a crucial strategy for those aiming to live a longer, healthier life.
The Study Behind the Discovery

The research study published in GeroScience examined the health data of thousands of Swedish individuals, shedding light on the blood biomarkers associated with reaching 100 years of age. This groundbreaking analysis highlighted the importance of maintaining metabolic health through key biomarkers like glucose, creatinine, and uric acid.
Biomarkers Linked to Longevity

The study identified key blood biomarkers like glucose, creatinine, and uric acid that were consistently lower in individuals who lived past the age of 90. These markers are indicative of metabolic health and kidney function, suggesting that maintaining these levels could be essential for achieving a longer life.
The Role of Cholesterol and Liver Function

Further analysis revealed the importance of total cholesterol levels and liver function markers in relation to longevity. Maintaining optimal levels of cholesterol and liver function, as measured by markers like alanine aminotransferase and gamma-glutamyl transferase, was associated with a higher likelihood of reaching 100 years.
The Complex Interaction of Genetics and Lifestyle

While the study did not definitively pinpoint specific lifestyle factors or genetic influences on longevity, it emphasized the importance of factors like nutrition and kidney health. Lower levels of uric acid, for example, were linked to increased chances of living longer, suggesting that diet and metabolic health play vital roles in aging.
A Path Forward for Longevity Research

The study’s findings highlight the complexity of aging and the need for ongoing research into biomarkers that could unlock the secrets of longevity. By tracking and managing key biomarkers associated with longevity, individuals may improve their chances of reaching 100 years and beyond.
Sources
- “Scientists discover that people who live past 90 have key differences in their blood.” Indy 100. Catherine Shuttleworth. July 2024.
- “How Some Go On To Live Past 90? Study Claims They Have Differences In Blood.” NDTV. November 1, 2023.
- “The Blood of Exceptionally Long-Lived People Shows Key Differences.” Science Alert. Karin Modig. October 13, 2023.