Qi gong can be practiced anywhere. Qi gong is the most convenient, economical and safe exercise that you can do to improve your health. The duration of each qi gong set can range from 15 minutes to 30 minutes. You can shorten or lengthen the practice by decreasing or increasing the repetitions per move. When you have limited time, it is best to perform fewer repetitions slowly as opposed to more repetitions quickly as slow movements help achieve optimal results.