November 23, 2015 | Scientific American
Lead exposure in early childhood is associated with increased risk for sleep problems and excessive daytime sleepiness in later childhood, according to research from the University of Pennsylvania, US.
The findings, which will be published in the December but are already available online, are based on data from a longitudinal study of more than 1400 Chinese children that began in 2004 to examine the influence of lead exposure on neurocognitive, behavioural and health outcomes in children and adolescents. [...]
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