It is a short distance from Trump Tower on Fifth Avenue to the United Nations headquarters on First Avenue, but these are different worlds. Donald Trump’s native world is one of unilateralism and competition, with more than a hint of bravado and aggression. The U.N.‘s...

Fully automated cars are still many years away. Amid the governmentactivity and potential for social benefits, it’s important not to lose sight of smaller improvements that could more immediately save lives and reduce injuries and economic costs of...

With school starting, parents wonder what they can do to help their children succeed. Almost everyone knows that reading books with young children is important, and it is. But even more important is that we talk...

Teens aren’t what they used to be.

The teen pregnancy rate has reached an all-time low. Fewer teens are drinking alcohol, having sex or working part-time jobs. And as I found in a newly released analysis of seven large surveys, teens are also now less...

After several years of studying brown bear ecology on Alaska’s Kodiak Island, I grew used to walking up streams into scenes of carnage. Where bears had killed and...

People with standard vision can see millions of distinct colors. But human language categorizes these into a small set of words. In an industrialized culture, most people get by with 11 color words: black, white, red, green, yellow, blue, brown,...

The U.S. has seen substantial improvements in life expectancy over the past century, particularly for those who are better-educated and more affluent.

Our study, out September 18, looks at the health of older Americans in recent years, using data collected by the U.S. Department of Health and...

For people who don’t get sleepy until 2 a.m., the buzz of an alarm clock can feel mighty oppressive.

Relief may be on the horizon, thanks to the discovery this spring of a genetic mutation that causes night-owl behavior.

Whether you’re a night owl or a morning lark...

It’s not easy to hold the nation’s attention for long, but three solid weeks of record-smashinghurricanes directly affecting multiple states and at least 20 million people will do it.

Clustered disasters hold our attention in ways that singular events cannot...

Editor’s note: Should someone wearing a badge have the power to relieve a suspected drug dealer of his Maserati on the spot without giving him an opportunity to flee or liquidate and...