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A groundbreaking study has identified age 50 as a pivotal moment when the human body may begin to experience accelerated ageing, with blood vessels becoming particularly vulnerable. The research, published in the journal Cell by scientists from the Chinese Academy of Sciences, analyzed more than 500 tissue samples spanning five decades and multiple organs, including the cardiovascular, immune, and digestive systems.
The team utilized proteomics—the comprehensive study of proteins—to map ageing trajectories across different organs. Their findings reveal a distinct inflexion point around age 50, after which signs of ageing appear to intensify, particularly within blood vessels. The aorta, a major artery responsible for carrying blood from the heart to the rest of the body, was found to age earlier and more noticeably than other tissues. Researchers believe this early vascular ageing could play a key role in triggering systemic ageing by influencing interactions among various organs and blood components.
“Our study highlights the early and pronounced ageing of the aorta, underscoring the critical role of vascular senescence in initiating systemic ageing through its extensive interactions with other organs and blood components,” the authors wrote.
To further chart these changes, the researchers developed protein-based ageing clocks—a novel approach to gauging biological age and predicting disease risks among organs. These methods provide fresh insight into how the ageing process unfolds across different systems within the body.
This new evidence builds on prior work, such as an August 2024 Nature Ageing study, which identified ages 44 and 60 as other crucial milestones for shifts in bodily molecules and microbes, affecting both heart and immune functions.
Disclaimer:
This article summarizes findings from scientific research and is intended for informational purposes only. It should not be construed as medical advice. Individuals concerned about their health or ageing should consult qualified healthcare professionals before making any health-related decisions.
