According to a recent study, stability in body mass index (BMI) over time is linked to a slower cognitive decline in older people.
The study is based on the information from 15.977 initially nondemented elderly adults over 5 years period of time. The researchers found that participants with greater variability in BMI (increase or decrease of 5% and more) had faster cognitive decline. This was independent of the BMI status at baseline (underweight/normal/overweight or obese).
Based on their findings, the researchers believe that stability in BMI over time is a good sign of a slower rate of cognitive decline, both in global cognition and specific cognitive domains.
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