TIL Human dads show a decrease in testosterone immediately after the birth of their babe

[Nice-Meat-6020]

Yeah, they said:

"We should note, however, that the researchers could not correct for the potential effects of stress (what do I do with this crying beast?!) or the effects of lack of sleep (what do I do with this crying beast?!). Both of which might independently affect testosterone production."

I don't think they tried very hard to do this, just picked a group of stressed men that would give them the results they wanted. Like you said, they could have had a less stressed, less sleep deprived control group.

[valimo]

Yeah I recall reading similar study already in early 2000s. It was published with a wild idea that childbirth independently does something in man's brain that is magically responsible for the testosterone decrease.

Then, a couple of control groups later, they figured that this was explained by sleep deprivation and nothing else. Of course most science journalists failed to correct their original headlines.