After several studies there are considerable disadvantages for early retirement. An analysis by Cornell University shows a strong correlation between early retirement and premature death. Other studies show a connection between prolonged work and increased lifespan.
From this perspective, we can conclude: early retirement is a punishment!

That's why I am so terrified of "the retirement thing". I don't want to retire, ever! I think it makes you brain-dead (actually, some research papers confirm it).
My grandpa is a terrific example. He is 82 and is still working. He is SO up-to-date. It's a blessing to have someone like him to share his experience.

I think, with this economy and the retirement age going up every year, our generation will never get to retirement anyway.

Nice post. Short and very informative! :)