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Health care consistently polls as the top issue Iowa voters care about. In the western part of the state, one doctor faces growing debt as he sometimes treats patients without coverage for free.

What you eat during the day can affect how well you sleep at night. Sleep researchers explain the impact of diet, caffeine and alcohol on sleep health, and share a list of sleep-supporting foods.

The chairman discussed evidence with the president without sharing it with the committee. The top Democrat on the committee says that's "disturbing," and the rift between them is raising eyebrows.

It's a regular event for TV critics to gather in Los Angeles for press conferences with networks and cable companies. But this year, top executives won't hold question and answer sessions.

A survey of international travelers found that no U.S. airports rank near the top of the list. The best the U.S. could do was Cincinnati's ranking at No. 30. So what makes a good airport, anyway?

J.C. Penney, American Eagle and Target are each looking to find a new CEO. As these retail chains continue their search, executive recruiters explain why it's so hard to fill those top jobs.

The BBC and BuzzFeed published an expose about match-fixing in tennis but did not name names of implicated players. Some people, including Roger Federer, have called for the release of names.

President Obama wants House Republicans to simply pass tax-cut extensions for most Americans and argue about the rich later. It looks like he's found at least one ally — Oklahoma congressman Tom Cole.

The federal government's top climate scientists announced Tuesday that 2012 was really hot — among the top 10 hottest years on record and the hottest ever in the U.S., with rising sea levels, less Arctic sea ice and warmer oceans. And the American Geophysical Union called humanity "the major influence" on global climate change.

In one semifinal, top-ranked Alabama is pitted against Ohio State. In the other, defending champion and undefeated Florida State takes on Oregon. Robert Siegel talks to Grantland's Holly Anderson.