Is she “crazy,” or is her gray matter just being compressed? Neuroscientists in Spain have found a connection between pregnancy hormones and fluctuating gray matter in the brain — which could help illuminate more about the postpartum period and attachments between mothers and newborns. A study done in association with the BeMother project found that pregnancy likely leads to a temporary dip in gray matter. This might otherwise be cause for concern, but in this case, the eventual rebound of that