Incubation = loss of gray matter. ANY of us would know that, but no, because breeding must permeate everything this beaten-to-death science needed to trash a site I normally respect. So did the Lifescript-y sponsor of this tripe (think push presents - scroll down).
https://www.seeker.com/videos/your-brain-changes-all-the-time-but-being-a-mom-changes-it-forever