Hormones are strange

In Study, Fatherhood Leads to Drop in Testosterone - NYTimes.com

The report notes:

Testosterone, that most male of hormones, takes a dive after a man becomes a parent. And the more he gets involved in caring for his children — changing diapers, jiggling the boy or girl on his knee, reading “Goodnight Moon” for the umpteenth time — the lower his testosterone drops.

So says the first large study measuring testosterone in men when they were single and childless and several years after they had children. Experts say the research has implications for understanding the biology of fatherhood, hormone roles in men and even health issues like prostate cancer.

Given that other studies have indicated testosterone can bounce around for all types of reasons, including whether your political party has just lost an election, or if (you are soccer goalkeeper), depending on if you are playing away or at home, I don't know that it is really that surprising.

Testosterone is a bit strange.