[zerealshadowban]

Isn't it well established that pregnant women host new brain cells that migrate from the fetus?

[bell-cot]

https://pmc.ncbi.nlm.nih.gov/articles/PMC2633676/ (2007)

https://academic.oup.com/clinchem/article/67/2/351/6071463?l... (2020)

https://en.wikipedia.org/wiki/Microchimerism#Fetomaternal_mi...

IIR, substantial and sustained fetal cell presence in the mother is often a sign that things are going wrong.

[robwwilliams]

Not that I have ever heard. How could that be established?