Have you ever found yourself getting blue when you're on social media? It's almost impossible to scroll through your friends' posts about their brilliant children, gorgeous homes and new cars, and not come away wondering when your life hit the skids.
That's according to researchers at the Happiness Research Institute. The center conducted a study with more than 1,000 daily Facebook users, to see how the site affected their mood.
One group went cold turkey for a week. No Facebook, at all. The other group went about using Facebook as they normally do. Can you guess what happened?