None of the longest-lived people ran marathons or pumped iron. They live exactly as their grandparents before them - surrounded by family and friends.

Kids in a home with grandparents are healthier.

Exercise, from a public health perspective, is an unmitigated failure. The world's longest-lived people live in environments that nudge them into more movement. They don't use power tools, they do their own yard work, they grow a garden.

People who are making it to 100 live in environments where they are regularly nudged into physical activity.

I'm surrounded by great friends and family. I don't know what I would do without them.

I have always followed exactly what interests me and never really worried about the money. And when you think about it, to be able to travel the world... on an expense account and do exactly what interests you, it just doesn't get much better than that.