Girls' Generation's Yuri revealed a surprising reason for her starting yoga (and now she's pretty much a master).  Despite her bright, easygoing personality and charms she always shows on screen, she revealed she had repressed anger she wanted to relieve herself of and found yoga to be the perfect outlet.

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On the August 18 installment of 'Our Neighborhood Arts and Physical Education,' she became the yoga instructor for the other cast members, stating, "The reason I started yoga was that there was a lot of anger in my body.  I started [yoga] because I wanted to train my heart (feelings)."

Kang Ho Dong asked, "Is there a relation between swimming and yoga?" and she replied, "I asked the swimming instructor if there was a relation between swimming and yoga." Sung Hoon answered, "Pro athlete swimmers even receive yoga lessons."