Cyclic Hyperventilation Before Gratitude Practice

“This is seen nowadays somewhat commonly as having people, for instance, cyclic hyperventilated breathing, as we call it in my laboratory, breathing that's very intense of the inhale, exhale, inhale, exhale very deeply for 25 or 30 breaths. Then people will sit in a meditative stance, or they'll focus on their notepad and paper, and they'll write out the things that they're grateful for.”