You must     1     common sports such as football and ping pong, whose purpose is exercising your body and mind, as well as     2     walls. These common sports     3     all around the world since their origins. However, there are people     4     rather unusual sports like sandboarding just for the adventure, whereas other sports are even regarded as a performance art. So, can you imagine combining the satisfaction of a well-pressed shirt with the thrill of outdoor extreme activities? Extreme ironing can be this weird sport that     5     in mid-air, underwater, on a ski slope or in a forest. You may wonder whether it is merely invented to seek attention     6    .

There is a particular amusing event called wife-carrying that     7     for its long history. The inspiration came from an event that once a Finnish man     8     a lady and carried her away. This sporting tradition     9     several hundred years ago and its modern version which is     10     two dry obstacles and a wet obstacle into a running course of 254 meters for the heavy lifting contestants.