The Science of Breath Rewiring Stress via Hormone Regulation

Sudarshan Kriya Yoga breathing regulates stress through interactions with the sympathetic and parasympathetic nervous systems and through hormone-regulating systems. The hypothalamic-pituitary-adrenal (HPA) axis controls stress hormone release, including cortisol and ACTH. Chronic activation of this axis can impair mood, immune response, and metabolic stability, contributing to emotional exhaustion, sleep disturbance, and systemic inflammation. Research on SKY Breath indicates moderation of stress hormones while increasing hormones linked to recovery and emotional well-being, including prolactin and oxytocin. This hormonal shift supports calmness and regulation, and rhythmic breathing for a few minutes can calm the mind in the moment.

"Understanding how breathwork, specifically the Sudarshan Kriya Yoga - RP (also known as SKY Breath and related practices) regulates stress requires a look into its effects on the body's hormonal and neuroendocrine systems. In addition to directly interacting with the sympathetic nervous system (which activates the body's fight-or-flight response) and the opposite parasympathetic nervous system (slowing the body down, restoring calm, and supporting recovery, healing, and long-term resilience) as discussed in a previous post, breathing is also tied to other hormone-regulating systems.[1]"

"Also key to this process is the hypothalamic-pituitary-adrenal (HPA) axis, which governs the release of stress hormones such as cortisol and adrenocorticotropic hormone (ACTH).[2] When chronically activated, this system can impair mood, immune response, and metabolic stability.[3,4] When looking at research on SKY Breath and how it interacts with these systems, it appears to restore balance by down-regulating stress hormones while enhancing those associated with recovery and emotional well-being, including prolactin and oxytocin.[5,6,7,8]"

"Chronic stress initiates a predictable cascade: The hypothalamus signals the pituitary to release ACTH, prompting the adrenal glands to secrete cortisol. While this response is adaptive in acute situations, persistent cortisol elevation contributes to emotional exhaustion, sleep disturbance, and systemic inflammation.[1] Emerging research shows that SKY Breath can moderate these hormones, raising what we might call "well-being" and bonding hormones (prolactin, oxytocin) and lowering the chronic stress hormones. The result: a body better"

Read at Psychology Today