I'm glad the transition to motherhood is being studied since there are many women who struggle with postpartum depression. I was very scared of it since I suspect my mother suffered from it for years after I was born. Turns out I was fine.
In my opinion, motherhood has gotten so unnaturally singular for parents who live far from any extended family. What I'm talking about is our distance from the grandparents, the aunts, the uncles -- "the village" which historically helped raise children is too far away in many cases to offer meaningful help. The first few years are SO physical on mothers. Hello, sleep deprivation, hormones and constantly carrying 20lbs of baby/babystuff. Parents don't just need emotional help, they need actual physical help from people. And the less common it becomes, the less ok it feels for parents to accept help.
Whenever I visit a good friend with a new baby I change the diaper. I don't ask, I just do it if I think it needs to be done. Some people may think this is intrusive, but new parents need to receive this help and be ok with getting it.
Thanks for posting MrsCoolCat.