Comment Re: Human Growth Hormone (Score 1) 69
I plugged that question into ChatGPT. Apparently, HGH is normally produced by the pituitary gland. But during pregnancy, a different version of HGH produced by the placenta takes over its role. It reorganises the mothers body until deli ery. Placental growth hormone disappears from maternal circulation very rapidly after childbirth, generally within about an hour. The mother's usual pituitary growth hormone system then resumes its role.