Explore the history of Yoga Nidrā, from references in the Mahābhārata, Devī Māhātmya and Vijñāna Bhairava to its modern development. Discover what neuroscience reveals about brainwaves, the sleep–wake threshold, conscious rest and the nervous system. Examine why saṅkalpa, affirmations and sound baths are used alongside Yoga Nidrā and what research does and does not establish. Learn how The Yoga Nerds integrates these subjects into its 25-Hour Online Yoga Nidra Teacher Trainin