Postpartum hormonal changes require a change in the brain chemistry: Prolactin (https://en.wikipedia.org/wiki/Prolactin https://en.wikipedia.org/wiki/Prolactin)

Postpartum hormonal changes require a change in the brain chemistry: Prolactin (https://en.wikipedia.org/wiki/Prolactin https://en.wikipedia.org/wiki/Prolactin) is enabled by Dopamine level going down. Dopamine is a key brain chemical affecting mood and energy to think. The potential for unexpected behavioral changes is a given. If someone is sensitive, already off balance or the change is larger than usual there is a great risk for mother and newborn.