A groundbreaking study by researchers at the University of Geneva and the University of Lausanne has uncovered why some individuals live to 100 and beyond, revealing that their bodies may age more slowly at the molecular level.
Conducted under the “SWISS100” project, the research analyzed blood samples from centenarians, octogenarians and younger adults. The findings challenge the long-held belief that aging is a steady and inevitable decline. Instead, scientists discovered that centenarians maintain certain biological traits that resemble those of much younger individuals.
Out of 724 proteins examined, researchers identified 37 proteins in centenarians that closely matched those found in people aged 30 to 60. These proteins are linked to key functions such as reducing oxidative stress, maintaining tissue structure and regulating metabolism. The results suggest that while aging does occur, critical biological processes may slow down significantly in those who reach extreme longevity.
One of the most striking findings relates to oxidative stress a major driver of aging caused by harmful molecules known as free radicals. Surprisingly, centenarians showed lower levels of antioxidant proteins, indicating they experience less oxidative stress in the first place, rather than needing stronger defenses against it.
The study also found reduced inflammation and better metabolic balance among centenarians. Key markers linked to fat metabolism and chronic diseases were more stable, while proteins associated with inflammation were notably lower. These factors may help explain their lower risk of conditions such as cardiovascular disease and diabetes.
Researchers emphasize that longevity is not solely determined by genetics. In fact, only about 25% of lifespan is linked to genetic factors, while lifestyle choices play a much larger role. Healthy habits such as balanced nutrition, regular physical activity and strong social connections were highlighted as critical contributors to long-term health.
The findings, published in Aging Cell, could pave the way for new treatments aimed at slowing aging and improving quality of life in older populations. For now, the research reinforces a powerful message: living longer may depend less on extraordinary biology and more on maintaining balance within the body over time.
Keywords:
longevity study, centenarians research, aging biology, University of Geneva study, oxidative stress aging, healthy aging science, living to 100, metabolism and longevity, anti-aging research, lifespan science
Asian Burg | Science Desk
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