Yahoo! News - Male Brain Science Gives Clue to Nagging Questions
The male brain secretes less of the powerful primary bonding chemical oxytocin and less of the calming chemical serotonin than the female brain.
So while women find emotional conversations a good way to chill out at the end of the day, the tired male brain needs to zone out all that touchy-feely chatter in order to relax -- which is why he wants the remote control to zap through "mindless" sport or action movies.
His brain takes in less sensory detail than a woman's, so he doesn't see or even feel the dust and household mess in the same way. Anyhow, the male brain attaches less personal identity to the inside of a home and more to the workplace or the yard -- which is why he doesn't get worked up about housework.