The British researchers continued to study the families for a longer time.When the babies were three and a half years old, researchers could still see the effects of depressed fathers.Each of the fathers had suffered signs of depression when their baby was two months old.These children had twice as many emotional and behavioral problems as children of fathers who were not depressed.These are important results. And researchers hope that these studies will help to inform the public about postpartum depression in men.After the birth of a baby, doctors or health care workers may make an effort to make sure that the new mother is happy and healthy.Some health care workers are trained to look for signs of postpartum depression in mothers.They try to help the new mother find support. But there is rarely a support system for fathers.