Previously, I posted the image of Cenegenics' Dr. Life from TIME magazine's article "Amortality" on longevity. Here is the photo from the print edition, not available online, of Dr. Life at age 72.
Of course, Dr. Life is using expensive supplements such as growth hormone and testosterone. However, it should be pointed out that he works out a lot; as bodybuilders will tell you, drugs and supplements are not an easy path to building muscle. Frankly, he compares well not only with the other 70 year old patients we get in the ICU, but with the 20yo patients we get, too. I know that having a beach body is not synonymous with health, but based on my experience so far it's a strong signal.