I would no more suggest that someone get a dog or cat to help with depression than I would suggest a couple have a child to solve marriage problems. Having said that, however, I have to agree with Kate...my 3 dogs are sometimes the only thing that get me out of bed in the morning. They need action, they need exercise, they need attention, which gets me in motion. And they give affection, sloppy wet kisses, and are always good for a smile or a laugh, which never fails to make me feel at least a little better, usually a LOT better.