In a study published in the current online edition of the journal Human Brain Mapping, senior author Paul Thompson, a UCLA professor of neurology, lead author Cyrus A. Raji, a medical student at the University of Pittsburgh School of Medicine, and their colleagues compared the brains of elderly people who were obese, overweight and of normal weight to see if they had differences in brain structure — that is, if their brains looked equally healthy. They found that obese individuals had, on average, 8 percent less brain tissue than people of normal weight, while overweight people had 4 percent less tissue.
One more knock against Obesity
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