Extra weight in 60s may be linked to brain aging: Study

Updated:6 years, 3 months ago

New Delhi, Jul 29 (ANI): A bigger waistline and high body mass index (BMI) in the 60s may be linked to the signs of brain aging by at least a decade, says a study. "People with bigger waists and higher BMI were more likely to have thinning in the cortex area of the brain, which implies that obesity is associated with the reduced gray matter of the brain," said study author Tatjana Rundek. The study has been published in the journal 'Neurology.' The study involved 1,289 people with an average age of 64. Participants' BMI and waist circumference were measured at the beginning of the study. An average of six years later, participants had MRI brain scans to measure the thickness of the cortex area of the brain, overall brain volume, and other factors. A total of 346 of the participants had a BMI of less than 25, which is considered normal weight; 571 people had a BMI of 25 to 30, which is considered overweight; and 372 people had a BMI of 30 or higher, which is considered obese. Having a higher BMI was associated with having a thinner cortex, even after researchers adjusted for other factors that could affect the cortex, such as high blood pressure, alcohol use, and smoking. In overweight people, every unit increase in BMI was associated with a 0.098 millimeter (mm) thinner cortex and in obese people with a 0.207 mm thinner cortex. Having a thinner cortex has been tied to an increased risk of Alzheimer's disease.

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Extra weight in 60s may be linked to brain aging: Study

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