Wolfgang Immanuel Schollhorn, professor at Germany's Johannes Gutenberg University Mainz, delivers a speech focusing on the effects of long-term Qigong training during the 1st Health Qigong Wellness Forum in New York city, Aug 18, 2013. The forum was held on Sunday as part of the 5th International Health Qigong Tournament and Exchange during which six scholars and experts in the world shared their new research findings on Qigong practicing from various perspectives. [Photo/Xinhua]