This is what happens when someone (myself in this case) only knows half the story. I was unaware that Bobbie Stevens book included exercises.
I have, however, found Qigong, any form of Qigong, highly beneficial.
When I visited China it was fascinating to visit a park in Beijing early in the morning and finding people there of all ages practicing one form of Qigong or another. Also Taijiquan (aka:Tai Chi Chuan). Most people are unaware that Taiji is a very effective and deadly martial art.
Louis Eagle Warrior