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Whether a candidate is behind or ahead in the opinion polls, political campaigns have a vested interest in portraying every race as close — even if it's looking like a blowout.

Because we had better food, our brains grew bigger than those of our primate cousins, scientists say. Early humans cooked, which makes meat and veggies more digestible and nutrients more available to the body. Plus, there was all that chatting and chewing around the campfire.

More intense care can translate into worse, and more expensive, care at the end of life. So, the thinking goes, doctors who train at hospitals with better and more efficient care will be in better shape to become future leaders.

NPR asked four economists to dream a little. If they could set aside the partisanship in Washington and do one thing to fix what they see as the economy's biggest problem — what would it be? Of course, even the potential solutions have downsides.

The U.S. secretaries of state and defense met their Russian counterparts for a day of talks in Washington on Friday. They hope to find common ground despite U.S.-Russian friction over the Edward Snowden asylum case.

The victory of the candidate backed by Michael Bloomberg's anti-gun superPAC in an Illinois primary was more than just another achievement on the gun control front. It was one more win in Bloomberg's unique assault on what he views as the public health problems of our time.

The first pope in about 600 years to voluntarily step down is headed to a life out of the public's eye. Now, the church's cardinals turn to the task of selecting a successor.

The Wells Street drawbridge carries cars, buses, bikes, pedestrians and elevated trains across the Chicago River. Half of the 91-year-old bridge will be replaced in just nine days. The project is so complex that one Chicago transportation official compares it to open heart surgery.

Although it may be uncomfortable for patients to learn that there are profound disagreements among doctors about medicine, these differences of opinion are common.

The motivation for flying with other birds in V formation is probably to save energy, say researchers who tracked the pattern of wing flaps in an ibis flock. Each bird in the V catches a bit of lift from the bird ahead.