The health issues hits hard and how you tend to lose friendship through them. I didn't even look at it from this angle, but that's certainly something that's happened with me. I was a heavy Facebook users in the past, but I've not done anything on it since 2 years. It's safe to say I'm no longer the social type.

I think we lose people when we are not as social as we use to be, and there are group of people who are in our lives just for the social aspects of it.