A new type of integrated check that has originated from China, has become a global sensation on SNS. Chinese social media BiHiroshi (weibo / U~eibo) created a hashtag (in Chinese) that has has exceeded over 100 million hits.
The method very simple. Only touch your belly button by turning the arm from the back.
Although the method is indeed simple, softness and length of the arms and hands is going to be necessary.
And, I thought whether it was for women only, it seems men can also be challenged.
Guys, Why not try this challenge?