Linda Poon

The most popular videos around the global include silly human tricks, stark crime re-creations, cheery revenge songs ... and the inevitable dancing politician.

A 6-year-old comic had nearly 6.7 million views in Nigeria alone! Let's see who else made the YouTube Rewind list of most popular videos in countries around the world.

Everyone has diarrhea from time to time. For most, it's often no more than an inconvenience. But with the right mix of toxic circumstances, it can prove deadly.

A kid with big problems isn't doomed to a dark future.

That's the message from a new study in China, looking at the so-called left behind children, whose mothers and fathers have moved from rural communities to faraway cities to find work. But the lesson applies to any child ...

In one photo, 23-year-old photographer Liu Yuyang captured a special moment between Mei Lin and her two granddaughters. The 83-year-old woman is smiling as one granddaughter leans down to give her a kiss and the other poses for the camera.

But Mei Lin's eyes give away how tired she is. ...

Too much love and affection from Grandma and Grandpa are helping China's "little emperors" pack on the pounds.

That is, children in China who are mainly cared for by grandparents are twice as likely to be overweight or obese, according to a study published this month in the ...

Humans of New York has become a worldwide hit, with hundreds of thousands of people "liking" Brandon Stanton's photos on Facebook — candid shots and candid comments. Among this month's posts: A dad taking his headstrong little daughter for a walk and observing, "This is tougher than the ...

Filmmakers are using virtual reality to make the problems of the developing world seem more ... real.

But how can you see their work?

You could buy a headset, but you might end up in virtual debt. Prices range from $200 to $500 for devices from big players like Oculus ...

For just a few minutes, I'm standing in the streets of Kathmandu. Families pick through the rubble left behind by April's devastating earthquake. I take in the sounds of metal clanking, of footsteps and chattering. A few people walk by, staring straight at me.

I want to help — but ...

The Doctors Without Borders Instagram feed often features doctors and patients and pills.

Last week, a startlingly different photo was posted.

A woman, her head slightly turned, stares out from the wall of a building on the bustling streets of Haiti's capital, Port-au-Prince. A lock clamps her lips ...

Back in the day, this saying applied to pretty much everyone: "I scream, you scream, we all scream for ice cream."

Nowadays, though, one friend is probably screaming for gelato, another for a vegan frozen dessert and yet someone else for sherbet.

But it's gelato, ice cream's Italian cousin, that's ...

In the rural pockets of India, a lifesaving device may be hidden in plain sight.

Across the country, it's not uncommon to see women sporting a small dot on their foreheads between their eyebrows. The mark is known as a bindi. And it's a Hindu tradition that dates to the ...

When Fatima Haidari got her first bike at age 9, she rode it all the time. But when she became an teenager, the rules changed.

"I used to bike outside because I was a kid, and nobody cared," Haidari says. "But when I got older, it got kind of weird ...

So what does it mean to be hungry?

That's a question that occurred to us as we read some encouraging news: The world isn't as hungry as it used to be.

A U.N. report has noted that 795 million people were hungry in the year 2014. That's a mind-boggling ...

It's a "year of fear" for children.

That's how Gordon Brown put it in a speech this month. He's the former British Prime Minister who is now the U.N. special envoy for global education. And he's worried about kids.

"This is not the year of the child but the ...

Whether they're in a posh London school or in the slums of Kenya, in the midst of war or in a battle against bullies, kids take playtime very seriously.

That's what photographer James Mollison learned after spending five years photographing school playgrounds around the world. The project began in ...

On a sunny day in the remote Chienge district of Zambia, hundreds gathered for a celebration that was the first of its kind. There was singing, laughing and no shortage of dancing. The village chiefs and government officials came dressed in their finest clothes, while volunteers sported bright green T-shirts ...

The crows freaked out. The dogs howled. And just as the sun was beginning to set, a second earthquake struck Nepal.

Animals react to earthquakes before they strike. People react after they hit. And in Nepal, Tuesday's 7.3 magnitude earthquake, coming almost three weeks after the April 25 quake, prompted ...

Pregnant mothers are often reminded that they're eating for two. But 17-year-old Gladys barely has enough food for one.

Gladys, who is pregnant with her first child, lives in Malawi, a country with widespread poverty and malnutrition. In 2012, 78 out of every 1,000 children died before they turned 5, ...

The clock is ticking on Lokesh Todi's efforts to raise $150,000 for charities based in Nepal. That's what happens when you use social media. You set up a donation campaign on a site like Indiegogo Life (as Todi has done). Then you have a set amount of time to ...