Adults gain substantial health benefits from 2 1/2 hours a week of moderate aerobic physical activity, and children benefit from an hour or more of physical activity a day, according to the new ...

Making a New Year’s resolution at the individual level is one step. But America resolving to make the changes necessary to ...

After a decade, Americans have new physical activity guidelines to aim for — and officials hope the changes will get more people encouraged to get moving. That's because the new guidelines, released ...