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Jet lag and shift work impose painful changes on the body's circadian rhythms. Adjusting oxygen consumption might help, researchers say. But don't hold your breath; it's only been tested in mice.

Everyone watched the same debate, but not everyone watched the same post-game coverage. That can make all the difference.

Those self-checkout machines in the supermarkets and other stores have remained pretty much unchanged since the 1990s. They still don't work very well. Why can't they get better? We take a shopping trip with the inventor who describes the issue as a cognitive problem and a shoplifting problem.

Steve Inskeep talks to Clinton surrogate Democratic Sen. Amy Klobuchar of Minnesota, who was in Las Vegas to support Hillary Clinton during the last presidential debate with Donald Trump.

Donald Trump has alleged that the presidential election is rigged because, in part, the news media have "poisoned" the minds of voters. We take a closer look at the claim.

A truck crashed into a Christmas market on Monday, killing 12 people in what police call an intentional attack. A suspect was detained, but German officials say he is no longer in custody.

One veterinarian at a shelter in New York has become infected with a rare bird flu that infected dozens of cats there. The vet had only mild illness and recovered, as have all but one of the cats.

Donald Trump's inaugural address is expected to take place in the middle of a full day of events. He says his speech could have far reaching effects.

The president-elect has settled some of the legal and regulatory disputes he's embroiled in, but critics say his actions don't go far enough.

The transition to the Trump administration is likely to change the country's direction on key issues. We examine the national security, military and foreign policy environment Trump is inheriting.