Qigong has an effect on the electrical activity of the brain and there is well documented evidence around this. Specifically 5-hydroxytryptophan (5-HTP) increases (2 to 3 times in regular practitioners) in the Central Nervous System. Simply put this chemical intervention increases Serotonin. The implications are greater immunity, less need for food intake and better sleep.
https://youtu.be/CSiHjnj7cQM I was honoured to sit with two very different activist during the Conference for Climate Change and Consciousness at the Findhorn Foundation in Scotland. My early morning workshops, presented as a self soothing practice to better cope with change of all sorts were well received.