This won't work for the 50% of the population who are male, but I explained it in an email thus:
The problem with GD is that it's a brain wiring thing and the part of the brain that's wired as girl complains loudly about the hormone balance it doesn't like. Gender fog. So GD becomes a bigger part of you than you might prefer. For obvious reasons this is beyond my comprehension, but does PMT - another hormone/brain kickup - take you over in the same way?I'm pleased to say she understood that explanation immediately, both in terms of PMT and motherhood. Useful if anyone else needs to make the same point to a sympathetic but not-quite-comprehending genetic female friend.