Originally posted April 7, 2014. Relaxation practices are great during pregnancy as perinatal mental health is influenced by the nervous system In Part One, we looked at the hormonal-neurotransmitter feedback loops in a woman’s body and how they relate to mood during the menstrual cycle. (the Hypothalamus-Pituitary-Adrenal Cortex Loop and the Ovarian-Hypothalamus-Pituitary Loop) Today we look at a woman’s hidden hormonal shifts during pregnancy and birth. Pregnancy and ho