A Chinese instructor of qigong, a martial arts practice with Taoist and Buddhist philosophy, helps an foreign enthusiast during a practice session at a qigong expo held at Weiwu Square in Bozhou, Anhui province, Sept 5, 2013. The expo attracted 166 qigong aficionados from 10 countries. [Photo by Zhang Yanlin/Asianewsphoto]

A Chinese qigong instructor helps aficionados from different countries during a practice session at a qigong expo in Bozhou, Anhui province, Sept 5, 2013. [Photo by Zhang Yanlin/Asianewsphoto]

A Chinese instructor of qigong, a martial arts practice with Taoist and Buddhist philosophy, helps an enthusiast during a practice session at a qigong expo held at Weiwu Square in Bozhou, Anhui province, Sept 5, 2013. [Photo by Zhang Yanlin/Asianewsphoto]

Qigong aficionados from different countries practice the exercises at an expo held at Weiwu Square in Bozhou, Anhui province, Sept 5, 2013. [Photo by Zhang Yanlin/Asianewsphoto]

Qigong enthusiasts practice the exercises at a qigong expo in Bozhou, Anhui province, Sept 5, 2013. [Photo by Zhang Yanlin/Asianewsphoto]