Researchers in Spain are making progress in the battle against postpartum depression, which is a more serious condition than the "Baby Blues." They've developed a way to identify women who are suffering, making it easier to treat them.
They say 13 percent of new moms suffer from postpartum depression.
As for preventing it, they discovered an interesting relationship:
"They also discovered two protection factors that reduce the risk of depression -- age (the older the woman the lower her chance of depression), and whether or not a woman has worked during pregnancy (which reduces the risk)."
We can imagine the relief that correlation might inspire among women who work more and wait longer to have kids. Of course the researchers say on that matter...more research is needed.