From the Wash Post:

A new study of healthy older people found that the more active a person is, the longer he or she is likely to live. That alone is not terribly surprising. What’s new is that it apparently doesn’t matter what form the activity takes.
It doesn’t have to be 20 minutes a day of aerobic exercise — or even be exercise. It can be household chores, yardwork, child care, volunteer activities on one’s feet — anything that expends energy.

Um, if any senior citizens want to swing by my house this morning for about 20 minutes, I’ve got a list.