Except emotions caused by the interactions with other people. Even something like a little boost in morale can be nice, and can in fact help you get through the day.

@Onimaru: Oh cripe, abusive parents? Sorry to hear that, didn't know. Best of luck getting hold of your friends (and making new ones), and hang tight. I know what it's like to be low on friends, it's pretty horrible. Things have improved for me, so they probably will for you too!