Darby Saxbe

And it kind of connects back to what we were just talking about, like that normative change in testosterone is one of the drivers of sort of adiposity or weight changes.

you see it in primates too.

So they increase in body size across a mate's pregnancy.

It might be because a larger body is more imposing.

They can more easily pick up offspring.

And it's also like you want some reserve in case there's scarcity.

Yeah, which is true, I think, for why women gain weight, right?

Because we gain more weight than our babies are going to weigh.

Like I was super bummed when I realized that.

Yeah, five acts.

I was like, this baby is not 35 pounds.

Yeah.

Where does the extra weight go?

But it's like you actually need some reserve because who knows?

There could be a famine.

Yeah, it's a high calorie demand.

So it's like your body actually has to be sort of beefed up.

So it might be that there's a similar process happening for dads.

So the hormones are changing.

So psychologically, we can see mood disorder risk.