Yesterday, someone said something that had the whole group of people I was with absolutely belly-laughing. Once the guy got started, he kept going, improvising something somehow funnier with each ...

The 10 students have posted several videos conquering a range of activities from puppy yoga to dance classes and pilates.

Nearly a thousand people laugh heartily together for half an hour every morning in a park in Shenzhen, south China's Guangdong Province. The Guangzhou Daily took a closer look at those happy people.

Scientists say people from around the world can figure out the emotions behind our laughter. So, can you tell why this German person is laughing?