IJRAP International Journal of Research in Ayurveda and Pharmacy 2277-4343 Moksha Publishing House 10.7897/2277-4343.130363 A REVIEW OF THE EFFECT OF OMKAR MANTRA CHANTING ON THE NERVOUS SYSTEM AND ITS BENEFITS Kirti S Bongarge * Kalpana K Jadhav M.M. Godbole 11 -0001 76 78 Through this review, we are trying to explore the relevant work done on the Om Mantra chanting effect on the Nervous System and its benefits.__ampersandsignnbsp; Mantra yoga is one a part of yoga since ancient times. Om is the matrix of all mantras. The Om Mantra is described as Pranav in Patanjali Yogsutra. Its Japa [constant repetition], with bhavnam is the way [ should be done] or is advised at the beginning of Yoga sutras. Its Japa results in overcoming the obstacles of the mind before doing yoga and turning inward consciousness. The Upanishads are full of references regarding the __ampersandsignlsquo;Om__ampersandsignrsquo; mantra. Om is composed of three sounds, A, U and M, with a deep breath. It encompasses the sound of syllables that have an eternal purpose. When we chant __ampersandsignlsquo;AUM__ampersandsignrsquo;, a vibration sound is felt through our vocal cord, which clears and opens up the sinuses touching our front teeth gently, will now start to feel the top of our head. __ampersandsignlsquo;Om__ampersandsignrsquo; and its effect on the Nervous System is the endeavour of this review work. Research shows that Om chanting stimulates the Vagus Nerve through its auricular branches, sharpening the brain. The studies show that chanting Om can reduce activities of limbic brain regions, amygdala, hippocampus, parahippocampal gyrus, insula, orbitofrontal and anterior cingulate cortices and thalamus. These are the portion of the brain associated with stress and emotions. When the __ampersandsignlsquo;A__ampersandsignrsquo; sound starts, it generates a vibration in the abdomen. This strengthens the spinal cord. With all these reviews, we conclude the beneficial effect of Omkar Mantra Chanting on the Nervous System. Om Mantra Japa Nervous System Vagus Nerve Limbic region.