You never know what the next big trend will be. It was only a few month ago that the "belly button challenge," touching your navel by reaching behind your back and around your waist, became a craze.

The latest in extremely dangerous social media trends is the A4 waist challenge, a "fitness" test for people to judge whether their waists are paper-thin. The topic is trending on the Chinese social ...

Body challenges have become a thing on social media in recent years, but China's latest one takes fat shaming to the extreme. SEE ALSO: Model agency launches new plus-size division ... for men Chinese ...

The A4 challenge is paper thin, and will leave young girls feeling despondent, depressed and disgruntled this week as super skinny photos whizz are around the web. How many of them will turn to diet ...