An innovative method involving the ancient 'OM' sound, popularized by a viral video, is gaining traction among parents seeking to comfort their crying babies. This technique, rooted in Hindu tradition and yoga, utilizes low-frequency vibrations to potentially mimic the prenatal environment, thereby calming newborns. Experts suggest the soothing effect could stem from vagus nerve stimulation or simply from the calming influence it has on parents, which babies then perceive.