I have become very interested in a condition in Japan that normally affects late teens or young adults
and it is called "Hikikomori" It literally means "pulling inward, being confined. Modern day hermits. I think it is related to depression.
I realized while watching the documentary that i had similar feelings when i had to retire. I shut myself off from EVERYONE!
I had it for about two years and it struck me that while watching the documentary that other people might have suffered from it without realizing it.
Anyway, i would recommend you watch it as it is interesting.