Poor nutrition is linked to weaker cognitive ability, impaired school engagement and hyperactivity in children.
Such pathological gaming is associated with depression, anxiety, social phobia and, in children, impaired school performance.
The high prevalence of iron deficiency in the developing world has substantial health and economic costs, including poor pregnancy outcome, impaired school performance, and decreased productivity.
Because of its enduring effects on brain development and other organ systems, toxic stress can impair school readiness, academic achievement, and both physical and mental health throughout the lifespan.
Social phobia was also associated with an increased rate of suicide attempts, antisocial behaviour and impaired school performance during adolescence, impaired medical health, increased health-seeking behaviour, poor employment performance, reduced social interaction and impaired social support.
Studies comparing cognitive functions before and after treatment for severe malarial illness continued to show significantly impaired school performance and cognitive abilities even after recovery.
Studies have shown that as a consequence of social jetlag accumulated during the week (which increases on average up to 3 hours as shown here), there is an increased risk for mood dysregulation, impaired school performance, excessive daytime sleepiness, and addictive drug abuse in adolescents [12], [14], [26] [30].
Theoretically, several perspectives predict impaired school adjustment and related psychopathology in these children.
In a recent review, Blaiss (2004) concluded that childhood allergic rhinitis, or allergies, contributes to increased loss of school days, impaired school performance, and increased mental health disorders from the various allergic symptoms and resulting increased sleep disruptions.
Upper respiratory tract infection (URTI) is an important cause of reduced activity days, school and work loss, impaired school performance, and increased healthcare utilization [ 6], resulting in substantial economic burden.
