Physiological Theories
Studies have shown that the male partner cohabitating with a pregnant female will experience hormonal shifts in his prolactin, cortisol, estradiol, and testosterone levels, typically starting at the end of the first trimester and continuing through several weeks post-partum.
Read more about this topic: Couvade Syndrome
Famous quotes containing the word theories:
“The egoism which enters into our theories does not affect their sincerity; rather, the more our egoism is satisfied, the more robust is our belief.”
—George Eliot [Mary Ann (or Marian)