The exercises of the Healing Sounds are very old, and go back to a famous Daoist master and pharmacologist of the 6th century, Tao Hongjing.
Prof. Lin Zhongpeng, of the Qigong College for Advanced Studies in Beijing, recommended this particular version of the Healing Sounds, because it is being used as a self-help tool for all people to fight against the coronavirus. When practiced regularly (as recommended in the video we have posted), it will improve breathing, strengthen the lungs and help to dispel disease.
Here is a video of it:
