"When my son, Moses, came into the world in 2006, I expected to have another period of euphoria following his birth, much the way I had when my daughter was born two years earlier," she wrote. "Instead, I was confronted with one of the darkest and most painfully debilitating chapters of my life. For about five months, I had what I can see in hindsight as postnatal depression, and since that time, I have wanted to know more about it. Not only from a hormonal and scientific standpoint, and why so many of us experience it, but from the perspective of other women who have gone through it."
The 37-year-old mother of two corralled another actress into sharing her story. Brooke Shields raised the profile of post partum depression in 2005 -- but this time, Paltrow handed the torch to Bryce Dallas Howard, daughter of famed actor-director, Ron Howard.
Howard, 29, found out she was pregnant seven days after her 2006 wedding. In Paltrow's newsletter, the "Twilight" actress wrote that she "treasured every moment I had with this new life growing inside me," even in the last month of her pregnancy when she tipped "the scale at over 200 pounds."
But after weathering a natural birth to son Theo, Howard "felt nothing." Soon after returning home from the hospital, things got worse.