A new study suggests that people who naturally get more REM sleep may be less sensitive to frightening things.

For the study, a team of researchers from Rutgers University sent 17 subjects home with sleep-monitoring devices—headbands that monitor their brain waves, wristbands that track arm movements, and sleep logs—and asked them to sleep as they normally would for a week. They were monitoring how much sleep they were getting—especially REM, or rapid-eye-movement sleep.

Each night, most people sleep about seven or eight hours, about two hours of which is REM sleep, the stage of sleep in which the body relaxes fully and most dreams occur.

Until recently, Colombia, geographically challenging and historically conflict-ridden, received little international tourism.

This has started to change in the past decade.

many of the most diverse areas in the country have remained inaccessible for tourists because they suffered armed conflict

a “super-women-friendly” place to work, boasting 25 percent female engineers.

“I only use Lyft,” he said. “Did you read that interview with the C.E.O., Travis, where he talked about how Uber helps him get girls? He’s a misogynist. I could never use his product.”

The essay that shook Silicon Valley was called “Reflecting on One Very, Very Strange Year at Uber,” and Ms. Fowler began by noting that it was “a strange, fascinating, and slightly horrifying story.”

“I was willing to do everything and anything,” Ms. Seefeld said.

Each had a son who had been accused at college of sexual assault.

The women had been meeting regularly to share notes and commiserate.

In the coming weeks, executives from Facebook and Twitter will appear before congressional committees to answer questions about the use of their platforms by Russian hackers and others to spread misinformation and skew elections.

Yet the psychology behind social media platforms — the dynamics that make them such powerful vectors of misinformation in the first place — is at least as important, experts say, especially for those who think they’re immune to being duped.

Skepticism of online “news” serves as a decent filter much of the time, but our innate biases allow it to be bypassed, researchers have found — especially when presented with the right kind of algorithmically selected “meme.”

Sometimes a dog’s expression merely reflects yours.

we’re not totally in control of how we view them and the opinion we have of them

Physical features, like the length of their noses and making eye contact, influence how we feel about dogs, he said.

Those are some of the scientific questions raised when San Francisco 49ers quarterback Colin Kaepernick decided last year to kneel, instead of stand, for “The Star-Spangled Banner” before a preseason game.

Police violence against unarmed black people.

At first glance, research into emotion and nonverbal communication suggests that there is nothing threatening about kneeling

European women working in the technology field are very familiar with the concerns expressed by their counterparts in the United States — too few girls and young women studying science and technology in school, gender bias and sexual harassment in the workplace.

While American companies are primarily the ones in the spotlight, they have a global reach, not just because of their size, but because of the ways their actions resonate around the world.

She feels, she said, a “basic condescension” as a woman in tech. “I feel I have to convince them that I know the technology, and they’re surprised when I do.”

After a Marine attacked an Iraqi restaurant inPortland, Ore., his family said he was provoked bytrauma, not hate, and that he needed help, not jail time.

PORTLAND, Ore

The Iraqi family who ran it felt welcome in this eclectic city.

President Trump’s decision to cut off critical payments to health insurance companies ratcheted up the pressure on Congress on Friday to take action to protect consumers from soaring premiums, while also adding a combustible new issue to negotiations to avert a government shutdown this year.

It came just hours after he signed an executive order that also undermined the health law by encouraging the development of lower-cost insurance policies not subject to the Affordable Care Act’s rigorous coverage standards.

“Our patients will ultimately pay the price,” said Dr. David O. Barbe