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Northern Nigeria is the only region in the world where the number of polio cases is on the rise. International groups have poured money and volunteers into the area to combat the disease. But vaccinators face daunting challenges — from security threats like terrorist bombings to a lack of basic resources like electricity.

Other takeaways from Tuesday's debate: President Obama gets tough while his GOP rival, Mitt Romney, gives no ground; voters are unhappy; candidates can't let go of the past; and the debate on foreign policy is truly teed up.

So far this year, NFL field goal kickers have made 88 percent of their attempts. They've even made two-thirds of their tries from more than 50 yards. When kickers are that good it hurts the game, says commentator Frank Deford.

As America ages, so do the nation's 2.5 million home health aides, leaving the elderly caring for the even more elderly. Clients often request someone closer to their own age, and agencies say older workers are reliable and well-suited to the job.

Researchers have found that fat cells become less responsive to insulin when sleep is lost. Over the long-term, fat accumulation can set the stage for Type 2 diabetes, fatty liver disease and weight gain.

Traditionally, Target has held off on unveiling its Christmas season ads until after Thanksgiving. Social media has buzzed with shock that the chain was breaching holiday decorum.

Kentucky is about to officially start a nonprofit education foundation modeled after one in Colorado and aimed at attracting funding for innovative school…

Parts of the country report a boom in the squirrel population. Vermont apple growers report squirrels can strip a tree of half its apples in hours.This adds urgency to the work of South Carolina researchers, who are experimenting with feeding squirrels birth control pills.

The 4.0 magnitude quake caused no immediate damage but it rattled nerves and became a talking point.

For years, Google has kept mostly silent about the technology that has made it one of the leaders in cloud computing. Now, for the first time, Google has opened the doors of its data centers to the outside.