Information about how to breathe with your diaphragm: This has links to some good ideas to teach breath control when you're delivering your own vocal warm-ups and voice classes. It also has a quick anatomy lesson
Yoga quote by Vanda Scaravelli: “There is no age to yoga. You can start at because if it’s done with gravity, with breath, you receive and you don’t go against, and you will never damage the body. The first thing is not to fight yourself.