I'm glad we're getting a better understanding of how much these variables contribute toward longevity and well-being. Now we just have to come up with a plan to deal with the challenges of people living far longer.

I don't know if I'm alone in noticing this, but there appears to be a larger divide in society along these lines opening up. More people seem to be exercising than ever - almost every guy I know has a gym membership, is taking part in a sport, or goes hiking, or whatever - where previously the same people may have been thin/healthy but sedentary.

On the other side of things, it appears that more people seem to be simply getting more fat and more sedentary. Where once there was thin/average and sedentary | mildly overweight and sedentary, it seems to be dividing to thin/average and pretty active | very fat and very sedentary.

That is all from personal observations, but it will be interesting to see the physical composition of society in 5-10 years time. What was once overweight has simply become normal, what was "fat" has now become huge and what was once a healthy weight has become the new thin.