Wehrwein, E. A., Johnson, C. P., Charkoudian, N., Wallin, B. G., &Joyner, M. J. (2012). A single, acute bout of yogic breathing reduces arterial catecholamines and cortisol.
Yoga is thought to reduce stress; however, few studies have quantified plasma levels of stress hormones. Yoga includes physical postures, meditation, and pranayama (controlled breathing) therefore it is difficult to determine which dose and combination of these components is most beneficial. We hypothesized that a single 15 min bout of 6 breaths per minute would be sufficient to cause a reduction in stress hormones. Ten ...