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Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
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High-throughput Synthesis of Carbohydrates and Functionalization of Polyanhydride Nanoparticles
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Carbohydrates and cognitive function.

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Diets high in refined carbohydrates negatively impact brain function, particularly memory, even without causing obesity. Early life exposure is especially harmful, highlighting the need to address metabolic health for cognitive preservation.

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Area of Science:

  • Neuroscience
  • Nutritional Science
  • Metabolic Health

Background:

  • Metabolic dysregulation, including obesity and diabetes mellitus, is linked to impaired neurocognitive function.
  • Refined carbohydrates represent a significant dietary factor influencing these metabolic and cognitive relationships.

Purpose of the Study:

  • To review the impact of refined carbohydrates on neurocognitive function across the lifespan.
  • To explore potential mechanisms and moderating factors in the carbohydrate-cognition relationship.

Main Methods:

  • Literature review of studies examining the effects of refined carbohydrate consumption on cognitive performance.
  • Analysis of evidence linking dietary factors to neurocognitive deficits and metabolic health.

Main Results:

  • Chronic refined carbohydrate intake is associated with neurocognitive deficits, especially affecting the hippocampus, prefrontal cortex, and reward pathways.
  • Early life exposure (prenatal, juvenile, adolescent) to refined carbohydrates may be particularly detrimental to cognitive development.
  • Negative cognitive impacts are observed independently of body weight, suggesting underlying metabolic, inflammatory, or vascular changes.

Conclusions:

  • Neurocognitive deficits from refined carbohydrate diets can precede overt metabolic disease, indicating the importance of targeting subclinical dysregulation.
  • Interventions aimed at preserving cognitive function should consider dietary refined carbohydrate intake and associated metabolic factors.
  • Addressing metabolic, inflammatory, and vascular factors is crucial for maintaining cognitive health throughout life.