A study involving nearly 3,000 adults across four countries has found that the widely observed link between chronic inflammation and aging in industrialized societies does not appear in certain Indigenous communities. Published in Nature Aging, the research challenges the long-held view that chronic inflammation is an inevitable hallmark of aging.
Researchers analyzed blood samples from populations in Italy, Singapore, Bolivia, and Malaysia, measuring eight inflammation-related proteins. In Italy and Singapore, inflammation levels rose significantly with age and were associated with conditions like chronic kidney disease. However, among the Tsimane people of the Bolivian Amazon and the Orang Asli in Peninsular Malaysia, inflammation levels were relatively high but remained stable across age groups and were not linked to age-related inflammatory diseases.
Scholars from Northwestern and Columbia Universities suggest that the role of inflammation may vary by environment. In industrialized settings, chronic inflammation is often viewed as a driver of age-related diseases. By contrast, elevated inflammation in Indigenous populations may reflect adaptive immune responses to frequent infections rather than pathological aging.
The researchers hypothesize that modern lifestyle factors—such as processed diets, physical inactivity, and chronic stress—may impair inflammation regulation in industrialized societies, leading to persistent low-grade inflammation and disease. Indigenous populations, however, appear to maintain more precise immune regulation, activating inflammatory responses only when needed and shutting them down promptly.
This study highlights the critical influence of environmental context on aging mechanisms and calls for a broader, more inclusive approach to aging research that moves beyond the industrialized-world paradigm.
Tags
Vision loss is one of the most common effects of aging, which often makes it harder for older adults to read or see clearly in dim light. Now, scientists at…
A new study published in Nature Communications points to a promising strategy for pain treatment. A research team led by the Pain Research Center at New York University has identified…
Scientists have identified a previously unknown type of immune cell in mouse fat tissue that appears to play a central role in chronic inflammation associated with aging. Unlike other immune…
A new study from the University of Hong Kong, published in Nature Climate Change, has found that long-term exposure to extreme heat can accelerate organ aging and increase multiple health…
A new study published in Nature suggests that replenishing lithium in the brain may prevent, and potentially reverse, Alzheimer's disease. By examining human brain tissue and conducting mouse experiments, researchers…
A study published in Cell reveals that human aging does not progress at a steady rate but accelerates markedly around the age of 50. Researchers analyzed tissues from individuals aged…
