Mass flash mob, according to the conditions of which people all over the world are now pouring themselves cold water and laying this video on the Internet – not everyone and not always succeed. These videos are well viewed with friends or with the family. Joint laughter charges “smeshinkami” each person, who is nearby. It’s like a ridiculous epidemic, when everyone is watching the video and laughing cheerfully.
Scientists have proved that positive emotions are good for our body. So why do not we laugh?