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Obesity and brain illness: from cognitive and psychological evidences to obesity paradox
Vincenzo Monda1, Marco La Marra1, Raffaella Perrella2
1Department of Experimental Medicine, Section of Human Physiology, University of Campania Luigi Vanvitelli, Naples, Italy.
Abstract:
Recent findings showed that obesity represents an additional risk factor to developing brain illness such as cognitive impairments and psychopathological disorders. However, some benefits of overweight in the elderly have been identified and an "obesity paradox" has been shown. Currently, it is still unknown how obesity and brain functioning could be linked, and the process by which body fat independently injures cognitive abilities and psychological well-being remains unclear. To establish the independent role of obesity on cognitive abilities and mental health, clarifying the role played by several factors and understanding their interaction is essential. In this review, we discuss the relationship between obesity and brain illness and underline the role played by confounders and other covariates to determine this link.
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