Well, I never, seen it, read it, and still do not believe it, but that is only my opinion of this. Others may agree with the scientist, but I am a skeptic and as such I question any reports such as this.
Now according to a medical research report if you are overweight then your brain looks ten years older that those are thin and leaner. Apparently, a team at University Cambridge report that an overweight 50-year-old has the brain of a 60-year-old.
Apparently, there is something called ‘White Matter’ in our brains and what the panel is saying is that there is a difference in the volume of white matter in the brain of an obese person in comparison to leaner people. Given that, in the same report, a Doctor comments that it was not clear whether obesity affects the brains or vice versa.
For the reader to appreciate the findings of the report, I am sending you back to the source: http://www.bbc.co.uk/news/health-36975089