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Metabolic Syndrome May Speed Brain Aging
15 Jul
Summary
- Metabolic syndrome components linked to older-appearing brains.
- Brain age gap increases with more syndrome components.
- Lifestyle changes can combat syndrome and protect the brain.
An estimated one in four adults globally experiences metabolic syndrome, a condition marked by a cluster of risk factors including high blood sugar, high blood pressure, excess belly fat, low HDL cholesterol, and high triglycerides. Recent findings indicate that this syndrome may not only be a precursor to diabetes and cardiovascular disease but also accelerate the aging of the brain.
Utilizing data from over 27,000 UK Biobank participants, researchers estimated brain age using MRI scans and AI. The study revealed that individuals with metabolic syndrome had brains appearing older than their actual age. Those with three components had brains one year older on average, rising to 2.3 years with all five components. This accelerated brain aging is attributed to markers of inflammation, atherosclerosis, and specific fatty acids.
Importantly, all five components of metabolic syndrome are modifiable through lifestyle choices such as regular exercise, a healthy diet, and adequate sleep. Even partial improvements in managing these risk factors can meaningfully slow brain aging, highlighting the critical link between metabolic health and cognitive longevity.
