Trek--

I think that cites most of the US studies. Though one line in that article gave me the giggles -- "she wakes early to start her 9am job and doesn't return home until 5pm."

Starts when? Returns when? Dang! I get up at 6am to start work by 8:30am and think myself lucky if I get home by 6:30pm. Rarely do I take lunch. I have at most half-an-hour a day to do a household chore or two -- the rest of the time is spent taking care of the critters (and part of this time is multi-tasking: working my remote job while I exercise the chinchillas). I have lost some eight or ten pounds in the last two weeks because I have not had time to eat properly, either at work or at home. My place is a wreck. This is a sorrow to me as I am by nature quite neat, but there's not much I can do about it until I get more of the rabbits into permanent homes.

(And before anyone asks, the critter care is because I have a house full of rescue rabbits, from this rescue: http://homepage.mac.com/lauriekay/PhotoAlbum7.html . The chinchillas are from another rescue. I don't collect or breed animals. I have five rabbit pens in what used to be my dining room, two in what used to be my living room, another in my study, plus my own "free range" rabbit, who is in the process of becoming best friends with the bun in the study.)