期刊
OBESITY REVIEWS
卷 12, 期 9, 页码 740-755出版社
WILEY
DOI: 10.1111/j.1467-789X.2011.00920.x
关键词
Adiposity; body mass index; cognition; cognitive impairment; obesity
资金
- NHMRC [510124]
Recent research suggests that increased adiposity is associated with poor cognitive performance, independently of associated medical conditions. The evidence regarding this relationship is examined in this review article. A relatively consistent finding across the lifespan is that obesity is associated with cognitive deficits, especially in executive function, in children, adolescents and adults. However, as illustrated by contradictory studies, the relationship between obesity and cognition is uncertain in the elderly, partly because of inaccuracy of body mass index as a measure of adiposity as body composition changes with aging. This review further discusses whether obesity is a cause or a consequence of these cognitive deficits, acknowledging the possible bidirectional relationship. The possible effects of increased adiposity on the brain are summarized. Our investigations suggest that weight gain results, at least in part, from a neurological predisposition characterized by reduced executive function, and in turn obesity itself has a compounding negative impact on the brain via mechanisms currently attributed to low-grade systemic inflammation, elevated lipids and/or insulin resistance. The possible role of cognitive remediation treatment strategies to prevent and/or treat obesity is discussed.
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