Post-natal depression in fathers in addition to mothers bring emotional problems for their teenage daughters finds a new study. The study found that almost one in 20 new fathers suffered depression in the weeks after their child was born. However this association of increased risk applied only to teenage daughters. Sons remained unaffected. The reason for this handing on effect could be that post-natal depression in fathers is sometimes linked with an increased level of maternal depression indicating family life is more disrupted for everyone with higher levels of stress for all. While it is unclear why girls may be