Hypothyroidism in pregnancy affects babies' intelligence

Pregnant women with untreated hypothyroidism give birth to children with slightly lower IQs, according to a new study, but experts disagree on whether the difference is enough to justify routine screening for pregnant women.

The study, conducted by a team from the Foundation for Blood Research in Scarborough, Maine, examined whether undetected or inadequately treated maternal thyroid deficiency during pregnancy was associated with lower IQ scores in the offspring in …