Qigong uses various techniques for healing such as visualization and breathing techniques. During Qigong practice, people feel a higher flow of blood which increases the body energy. It is said that a normal person uses only 60 of the circulatory system. When one practices Qigong the circulatory system becomes more efficient and provides overall wellness.
Qigong books
Heal Yourself with Qigong: Gentle Practices to Increase Energy, Restore Health, and Relax the Mind