Oh I could absolutely get behind this.
And there's not enough medical research around this phase, the article mentions physiology a lot and you have no idea till you're in it how much this matters.
(Very small example, nipple tenderness when feeding and returned cycles can be hugely helped with calcium and magnesium supplements. But you have to search that info out. (I actually got this info via Lll.) I'm currently feeling hugely better since doing this, joints, aches etc, at the moment. Another eg is that a friend though that lactational amenorrhea was an old wives tale, and an endocrinologist thought I might have a very serious illness and ordered quite a challenging test based on that as he'd clearly never heard of it either.)
It's not absolutely just breastfeeding though, as pointed out, the whole readjustment of your status at work, friendships, ability to exercise and engage in debates not relating to sleep, nappies and poo colour.
Currently battling some issues at work due to my part time status to be able to look after my toddler 2 and my health days a week apparently automatically means I am robbed of the intelligence and experience of 20 years around certain points.
Mumsnet was hugely beneficial in supporting me through matrescence. I thought I was failing miserably.