A study by researchers at the Hospital for Sick Children in Toronto has said that morning sickness in pregnancy may actually indicate a high IQ in children.
The study assessed the IQ of 121 Canadian children between the ages of 3 and 7, whose mothers had suffered morning sickness. They found that the kids scored high on certain tests of IQ, memory and language skills.
Furthermore use of morning sickness medicine diclectin did not reduce these effects. The study suggests that "nausea and vomiting in pregnancy is not harmful and in fact may enhance favorably children's long-term"