Thanks guys.
Dylan I'd forgotten about that $$ - pay up slacker!
My BIL, who is a stat modeler/actuary for a mortgage ins. co., was kind enough to inform me that if you check life expectancy tables, I (statistically) have exactly as many years left until expected demise as I have behind me now.
In other words, I must be officially middle-aged today.
I just took the Life Expectancy Calculator here http://calculator.livingto100.com/calculator
and it say I'll make it all the way to 93... which is alot longer to to halfway so I'll stick with that prediction instead!