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People are often told to walk 10,000 steps a day to be healthy. But if your goal is to avoid being crippled by knee arthritis, just 6,000 a day will to it, a study finds. And 3,000 is a good start.

Public health officials have dreamed of getting cigarette use down to 16 percent of teens, and that day has come. But some are turning to hookahs and electronic cigarettes, so the news isn't all good.

Rutgers University students now have a homework assignment they might look forward to: Listening to Beyonce. Professor Kevin Allred discusses his course, Politicizing Beyonce.

The House majority leader says he will step down from that post after a surprise loss. For more, host Michel Martin speaks with Republican strategist Ron Christie and Univision's Fernando Espuelas.

The actress who starred with Sidney Poitier in the 1961 classic A Raisin in the Sun died Wednesday. She was nominated for a best supporting actress Oscar for her work in American Gangster.

U.S. Army Sgt. Bowe Bergdahl, held hostage for five years in Afghanistan, has arrived at Brooke Army Medical Center in San Antonio.

The Library of Congress has chosen Southern writer Charles Wright to serve as the nation's next poet laureate beginning this fall.

In "A Replacement Life," author Boris Fishman writes about an immigrant from the former Soviet Union who moves to Manhattan.

The accident that seriously injured comic Tracy Morgan and killed another comedian has focused attention on truck driving safety. New regulations limited the amount of overnights truckers could work, but the trucking industry and its congressional allies are trying to roll back the limits.

Moscow has been talking lately about "color revolutions" as a new form of warfare employed by the West. The name comes from the Orange and Rose Revolutions in Ukraine and Georgia, respectively, but it's now being applied to popular rebellions such as those in Egypt and Syria. While Russia accuses the West of this kind of subversion, it seems to be following the same playbook in eastern Ukraine.