Through the years, you've probably accumulated a laundry list of "friends" from different stages of your life. Some "friends" you keep around because you want to see what they're up to, others you want to keep in regular contact with and the rest you're just too lazy to "unfriend." (Why do they make that so hard to do?)
I think most of us tend to go through life thinking that other people have it so much better than we do and Facebook makes it easy to keep that theory alive. Taking this vacation from Facebook helped me decide to give up on the idea that my life as a whole will be perfect in every aspect. This has allowed me to be a much happier version of myself.
I find it unsettling that people are spending more time connected with each other online than in person. While I enjoy interacting with my friends on Facebook and have been reconnected with old acquaintances, I am starting to feel disconnected in other ways and have found myself exhibiting some unhealthy habits.