Can-can

Famous energetic ballroom dance can-can (or cancan), which is performed by the row of female dances in long skirts originated form 1830s Paris ballrooms.

Illegal in Sweden

Unlicensed dancing in public is illegal in Sweden including illegally moving your feet to music

Muscular strength

Dancers have increased muscular strength, endurance and motor fitness. (No wonder professional dancers are today regarded as athletes.)