Hey there Rowdy, not trying to speak out of turn but just wanted to let you know that simply nursing a baby for a couple of years doesn’t hurt a woman’s immunity. It’s been done pretty much since Adam and Eve. If a woman couldn’t nurse her own child, another woman did it (a wet nurse). If another woman wasn’t available, they turned to the milk of an animal (cow, goat, etc.).
Commercially made infant formula wasn’t available until around 1860 or so.
Sounds like theory postured to support the trend to stop nursing - back in the 50’s.
Ummmm, I think you just proved yourself wrong. You might want to read your statement again.
If one woman is not nursing her baby, then another one is...thereby decimating the immune system of another woman.
Actually Europeans and Eurasians always had a substitute available for mother’s milk. That was one of the earliest reasons for domesticating large mammals. They had cattle, and camels, and goats....early native American women did not have ANY substitute.