Thanks for the book suggestion, I'll check that out! The super-agers (people keeping their health/mobility into their 100's) are an interesting bunch. The research I've read tends to point to it having to do as much with our DNA as it does our lifestyle. I thought it was interesting as I was researching our family tree I noticed several of my paternal relatives in the 1700-1800's living well into their mid-80s. We weren't so lucky on the maternal side.