Prana Vidya, an ancient yogic science from Vedic and Ayurvedic traditions, focuses on cultivating and regulating Prana, the vital life force, through techniques like Pranayama, meditation, and mantra-based therapies. A scoping review of classical texts and modern studies shows these practices enhance autonomic regulation, respiratory efficiency, stress reduction, and emotional stability. Physiological benefits include increased vagal tone, improved heart rate variability, lowered cortisol, and better immune responses. Psychological benefits include reduced anxiety and improved quality of life. Structured systems like Yoga Prana Vidya show therapeutic potential for chronic pain, hypertension, depression, and psychosomatic conditions. However, evidence is limited by small samples and heterogeneous methods, requiring further rigorous trials.
Regular meditation practice for three months significantly increased galvanic skin response (GSR)—a measure of skin conductance linked to relaxation—in healthy young adults. In a study of 50 medical student volunteers aged 18–25, GSR was measured before and after a program of 20-minute meditation sessions five times per week for three months. The median GSR rose from 267.5 to 534.5, a statistically significant change. The authors conclude that meditation promotes relaxation and may help reduce stress and anxiety by enhancing parasympathetic nervous system activity.
An eight-day residential meditation programme called Samyama, which includes vegan diet and preparatory yoga, is associated with reduced depression, anxiety, and stress, along with enhanced mindfulness, vitality, and resilience. Physiological benefits include lower systemic inflammation, improved blood sugar and lipid profiles, and shifts in endocannabinoid-like lipids. Neurophysiological changes involve increased connectivity between brain networks linked to salience and default mode, alongside relaxed alertness. Genomic analysis shows transient antiviral immune activation without excessive inflammation. Microbiome changes include sustained enrichment of beneficial gut bacteria three months after the programme. These findings suggest potential benefits for stress-related and inflammatory conditions, but the evidence comes from observational studies with shared participants, so randomized controlled trials are needed.