Is the surprising claim of this article. Research has shown that obese people have impaired episodic memory, that’s the memory of events throughout their life. Overweight women who lost weight through dieting were found to have changes in the brain regions used for memory and it was found that episodic memory was improved. The study appears to have concentrated on older subjects, so I wonder if the same could be said for younger people who shed a few pounds. My memory certainly doesn’t seem to get any better despite being in fairly good shape.