fitness

A major life insurer is offering lower premiums in exchange for policyholders' sharing activity data. But privacy advocates worry such programs eventually will be used to deny coverage.

Fitness programs typically don't have much staying power. People are already saying adios to Zumba and Pilates. The cheapest and simplest routines are more likely to be keepers. Think down dog.

How long can you sit still in a desk? How about your 7-year-old? Maybe you could both use a break. A study shows that kids who get to run around and play after school are better at paying attention.