described how humming increased nitric oxide up to fifteenfold in comparison with quiet exhalation. They concluded that humming causes a dramatic increase in sinus ventilation and nasal nitric oxide release. With this knowledge, it comes as no surprise that humming is also practiced during certain meditation techniques. The breathwork technique called Brahmari involves slow, deep breaths through the nose, humming on each exhalation to generate a sound similar to a bee buzzing, and while the exact science may have been a mystery to the creators of this meditation method, the associated feeling
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