Extra weight in 60s may be linked to brain thinning years later. Having a bigger waistline and a high body mass index (BMI) in your 60s may be linked with greater signs of brain aging years later, according to a new study. The study suggests that these factors may accelerate brain aging by at least a decade. Source 4u.
Who would of thought that your weight would have anything to do with your brain aging. But the people I know who are older with some extra weight do all seem to have issues, so I guess it does make sense.
The change in the weight of the brain begins to be significant from the age of 45. It is believed that normal cognitive decline begins along with brain decline. It is known that the weight of the brain in the elderly is 8% less, compared to the maximum weight of the brain mass in adulthood.