Key result
Chandra Nadi Pranayama linked to ~8-point increase in SDNN, boosting parasympathetic tone in healthy adults.
Why the study?
There is a lack of scientific data defining the acute effect of Chandra Nadi Pranayama on autonomic regulation.
Does a brief session of Chandra Nadi Pranayama alter heart rate variability and autonomic regulation in healthy young adults?
Cross-Sectional (n=30)
No
Does a brief session of Chandra Nadi Pranayama alter heart rate variability and autonomic regulation in healthy young adults?
Absolute Event Rate: 54.72% vs 46.25%
p-value: p=0.01
A single 5-minute session of Chandra Nadi Pranayama acutely increases parasympathetic activity and alters autonomic balance in healthy young adults.
BackgroundTraditionally, Chandra Nadi Pranayama (CNP), a type of left-nostril breathing, has been thoughtto promote parasympathetic activity and have soothing effects. However, there is a lack ofscientific data defining its acute effect on autonomic regulation. Lunar energy is related to coolingand healing effects on the body and mind in ancient yogic writings that describe left-nostrilbreathing. Modern physiology suggests that unilateral nostril breathing may influence cerebralhemisphere activity and autonomic nervous system function differently on the basis of the nostrilused.
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Mandal et al. (2026) conducted a cross-sectional in Healthy young adults (n=30). Chandra Nadi Pranayama (left-nostril breathing) vs. Pre-intervention baseline was evaluated on Standard deviation of NN intervals (SDNN) (p=0.01). Chandra Nadi Pranayama significantly increased the standard deviation of NN intervals from 46.25 to 54.72 (p=0.01) in healthy medical students, indicating enhanced parasympathetic activity.
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