"Young children are most at risk of harmful health effects, including lower intelligence, learning disabilities and behavior issues," he added.
Greater exposure to fine particles is associated with lower intelligence and diminished performance over a range of cognitive domains.
In addition to lower intelligence scores, lead exposure at an early age is linked to behavioral and emotional problems, and even higher rates of juvenile delinquency.
Ohio officials acknowledge that deafness and blindness do not typically imply lower intelligence, and said they would release report cards for these schools next year.
The emphasis by Lisa Belkin on the lower intelligence of children born to older fathers (April 5) is potentially intimidating and misleading.
One author of the study, Jason Richwine, resigned under criticism of his past writings asserting that some immigrants had lower intelligence.
Conclusion: After controlling for multiple confounders, being born SGA at term is associated with slightly lower intelligence test scores at age 17 years.
Lower intelligence, difficulty in paying attention and with fine motor skills, and lower academic achievement have all been connected to elevated lead levels.
Dr. Hack said a recent study of infants born weighing less than 1,000 grams found slightly higher rates of cerebral palsy and slightly lower intelligence quotients than in those of the same weight born in earlier decades.
Because they are inarticulate in the presence of articulate officialdom, you do not respect them and habitually talk to them as though they are of lower intelligence than yourself.
The extinction of Neanderthal man has been attributed variously to his having lower intelligence than modern humans, to worse language skills, to cruder tools, or even to the lack of a propensity for long-distance trade.
