"As they walk out the door each morning, working parents are grateful for the nannies who care for their children in their absence. And yet, those same parents often struggle with the knowledge that their young children spend more waking hours with their nannies than with their mothers and fathers. So when the time comes for the nanny to move on, parents may underestimate how profound the loss can be. As one mother in my women’s mental health psychiatry practice said, “I didn’t realize that she had become part of our family until she told us she had to leave.”"