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Cognitive Reserve in First-Episode Psychosis: Education PRS Adds 4.2%

Photoreal illustration of brain with strengthening neural networks suggesting reserve and protection against cognitive decline.

A 2026 analysis of 174 people with non-affective first-episode psychosis found that cognitive reserve was tied to 3 signals available near illness onset: age at onset, family history of psychosis, and polygenic liability for educational attainment. Adding the education polygenic score raised the model’s adjusted R² from 13.5% to 17.7%, a real but modest gain …

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Genetics of Common Executive Function (Cognition) from UK Biobank Data (2023 Study)

Executive functioning (EF) is a cognitive cornerstone essential for goal-directed behaviors and complex thinking. Recent research leveraging the massive UK Biobank dataset has shed new light on the genetic underpinnings of EF, revealing its distinct genetic profile from intelligence (IQ) and its intricate link with psychiatric disorders. This study underscores the importance of EF in …

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Insulin & Blood Sugar vs. Cognitive Function & Psychiatric Disorders (2023 Evidence)

Hyperglycemia, or high blood sugar, is more than a mere symptom of diabetes; it’s a complex condition that may significantly impact cognitive functions like memory and attention. While the association between diabetes and physical health complications is well known, there’s a growing body of research exploring how altered insulin signaling, a key feature of diabetes, …

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