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Three years after bariatic surgery, most people experienced health improvements. Yet some people benefited much more than others. Figuring out those differences would help doctors and patients understand who should have surgery and who should avoid it.

Janet Yellen cleared a key hurdle in her path to become the next chair of the U.S. Federal Reserve, after a Senate Banking Committee hearing went smoothly Thursday. The most difficult questions centered on the Fed's stimulus efforts.

The U.S. plans to give up oversight of the nonprofit that manages Internet names and addresses. Technology reporter Gauthem Nagesh of The Wall Street Journal explains what this means for the Internet.

As President Obama begins a week of diplomacy overseas, he faces domestic and international challenges. Steve Inskeep talks to contributor Cokie Roberts and Russia expert Stephen Sestanovich.

An anti-vice crackdown in China has targeted mistresses and sex workers as part of a social problem, but mistresses have been an open secret in China for years.

Many top athletes are rejecting the processed drinks and gels companies are squarely aiming at them. Instead, they rely on old fashioned water and healthy food to rehydrate and replenish nutrients.

Host Scott Simon catches up on the week in sports with Howard Bryant of ESPN: A surprise contender out of Chicago is taking on a well-funded operation with a mighty offensive attack and an NBA firing that surprised exactly no one.

NPR's Tom Goldman joins guest host Susan Stamberg to talk about his impressions of the London 2012 Olympics so far and what's in store for next week.

Nearly a year ago, Justice Department leaders turned to B. Todd Jones to solve one of their most urgent problems: a crisis at the Bureau of Alcohol, Tobacco, Firearms and Explosives. In a rare interview with NPR, Jones discusses the unique challenges of his job.

Critic David Edelstein reviews a film that may sound a lot like a campus-bound version of Glee, but has more to it than that label might suggest.