Women experiencing significant stress during pregnancy are more likely to have children with personality disorders, while the possibility increases as much as 10 times for those under severe stress, according to a recent study.

Researchers from Finland interviewed 3,600 pregnant women living in capital Helsinki within the scope of the study and monitored the children of the women, who were born in 1975-1976, for the following decades.

The results showed that children whose mothers experienced relatively normal levels of stress during pregnancy were three times more vulnerable against psychological disorders by the age of 30 while children whose mothers were severe stressed were 9.5 times more likely to have a mental illness.

40 of the children monitored in the study were diagnosed with a personality disorder until the age of 30, all of which were severe cases requiring inpatient treatment.

The researchers said that the correlation between the mothers' stress levels and the childrentarget="_blank"'>