Lately Brain Wave Vibration (BWV) Training has been all the rage at Dahn Yoga centers around the world. On dahnyogany.com, I found this sharing from Japan:
A late 20’s female member in Japan said that after not having a menstrual cycle for over ten years after an earth quake trauma, she started having it soon after BWV training classes. Once she gave up being a woman, but she got her womanhood back through the training.
