Therapeutic potential of slow pranayama in anxiety

Pranayama, yogic breathing techniques, are considered a form of meditation. In classical yoga, the breath is associated with prana; thus, pranayama is a means to control the inner force, the prana shakti or life energy. Pranayama is more than regular breathing and if practiced in structured and methodical manner can reduce the body's physical symptoms of stress and anxiety. It has more recently gained popularity in the western world because of the many health benefits that come from a pranayama practice. Anxiety disorders are among the most common mental health conditions, affecting millions worldwide. Anxiety is an emotional state in which one perceives worry, danger, apprehension, and nervousness and has negative effects on all aspects such as social, personal, and academic performance. It is closely linked with autonomic nervous system dysregulation, often reflected in decreased heart rate variability (HRV), a biomarker of vagal tone and emotional and psychological resilience. HRV reflects the balance between sympathetic and parasympathetic nervous activities. Nonpharmacological approaches such as yogic breathing techniques have shown promising approaches in reducing anxiety symptoms. The modulation of HRV through slow breathing, often characterized by a prolonged expiratory phase, enhances vagal tone, restores sympathovagal balance, and promotes homeostasis. Research indicates that yoga interventions positively impact individuals with mental health disorders, improving positive symptoms and quality of life and reducing milder symptoms. This review explores the therapeutic potential of slow pranayama in reducing anxiety symptoms and managing anxiety disorders. It examines current evidence, limitations, and future research directions for integrating yoga-based practices into mental health care.