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Diabetes Metab Syndr Obes. 2017 Nov 21;10:473-479. doi: 10.2147/DMSO.S148392. eCollection 2017.

Obesity and brain illness: from cognitive and psychological evidences to obesity paradox.

Diabetes, metabolic syndrome and obesity : targets and therapy

Vincenzo Monda, Marco La Marra, Raffaella Perrella, Giorgio Caviglia, Alessandro Iavarone, Sergio Chieffi, Giovanni Messina, Marco Carotenuto, Marcellino Monda, Antonietta Messina

Affiliations

  1. Department of Experimental Medicine, Section of Human Physiology, University of Campania Luigi Vanvitelli, Naples, Italy.
  2. Neurological and Stroke Unit, CTO Hospital, AORN "Ospedali dei Colli", Naples, Italy.
  3. Department of Psychology, University of Campania Luigi Vanvitelli, Naples, Italy.
  4. Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
  5. Clinic of Child and Adolescent Neuropsychiatry, Department of Mental Health, Physical and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy.

PMID: 29200883 PMCID: PMC5701608 DOI: 10.2147/DMSO.S148392

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.

Keywords: cognitive decline; mood disorders; obesity; obesity paradox

Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

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