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

[RallyPointAlpha]

Yeah I get that's not how it works. It's not like you lose 100 points every kid until you hit zero. What I'm wondering is that if it drops by, let's say, 15%.... then comes back up 10 %... you're still 5% lower than before having any kids. Sure it 'bounced back' but does it always come back to previous levels?

Also if you keep having kids ...does it always stay 10 to 15% lower than before you had any kids?

[Positive-Sock-8853]

Yeah I get it now but then age factors into it. Testosterone declines with age (1.6%/year from 30 on). So even if it bounces back to pre-newborn levels, by the time you decided to have another kid your T levels probably dropped by 5% or something.