Changes in auditory threshold of hearing after Bhramari Pranayama

This paper presents changes in relative auditory sensitivity in human after a yogic practice known as Bhramari Pranayama (BP). BP is a breathing exercise and is helpful in reducing neuronal abnormalities such as stress, hypertension etc. BP is characterized by the humming sound, one has to produce while doing it. The produced humming sound is steady and low frequency sound like the humming sound of the bumble bee. We assume that the self humming sound brings many soothing effects for the subject doing it. This paper reports effect of such humming sound on the Auditory Threshold of Hearing (ATH), a measure of auditory sensitivity. The observations on plural number of subjects show that BP produces change in ATH level for frequency range 100 Hz-15 kHz, however, such change last for a few minutes and ATH level again restores to normal level. We hope, the observed change in sensitivity might be beneficial for the ear functioning as such changes are related to cochlear mechanics.