3 Months Old!, Thermostat Wars

My daughter turned 3 months old today.  To mark the occasion, she rolled over about 3/4 of the way and pooped at least 12 times.  A busy day.  She can also hold her head up expertly, and looks tremendously cute sitting upright leaning back on our huge couch.  I celebrated by running 9 miles and having an aching knee, although the bottle of wine that my wife and I shared over lunch helped that a great deal.  

When I returned from running some errands my wife urgently informed me that it was freezing in our house.  In fact, it was the same 73F that it has been all summer, much warmer than the 68F I would prefer.  My wife is convinced that our daughter is always cold--despite pediatricians recommending keeping a home with a baby in it 68-72F.  So I'm pretty sure our daughter is fine, if not hot.  So, here's the question: why are women always cold and men always warm?  It seems counter-intuitive because women have more body fat and typically more hair.  Are they secretly reptilian?  It sucks.  And now, of course, our thermostat is set to 75F because let's face it, life is too short.  At least now I won't feel bad about spending the entire day in my underwear.  Of course, as my daughter grows up and becomes one of the vocal, cold-blooded females of the world, I'm going to be outnumbered, and it's going to suck.  Bottom line: I need a  son, ASAP.  But having a second kid scares the crap out of me, because my daughter is so fantastic.  And having an ally in the thermostat wars might not be the best reason to have Irish twins.