A study led by the University of Konstanz has discovered 10 biomarkers in the blood that can be used to determine the "biological age" of humans. This is an indicator reflecting the actual rate of aging of the body, which may differ from age over time.
The research team analyzed 362 biological indicators from more than 3,300 people aged 35 to 74. Using statistical and machine learning models, they narrowed down to 10 most important markers, with separate sets of indicators for men and women.
These imprints include many different factors such as chemical signals, genetics and cells. When compared to real age, scientists can determine whether a person's body is "aging fast" or "aging slowly".
To verify, the research group conducted tests on groups with different aging rates such as people with Down syndrome, smokers and women undergoing hormone treatment. The results showed that the indicators accurately reflected the rapid or slow aging trend of these groups.
According to scientists, biological aging is a complex process that cannot be measured by a single index. The combination of many biological markers helps increase accuracy, while opening up the ability to monitor health and early warn of age-related disease risks.
Research also shows that some markers play a role in promoting the aging process, while others are just indicators. This can help better understand the health status of each individual.
Experts believe that this blood test method can be applied to evaluate the effectiveness of anti-aging therapies and disease prevention. As the global population is aging, accurate measurement of biological age is considered the key to prolonging life expectancy along with a better quality of life.
