Our hearing is one of our most important senses, necessary for basic communication, speech and awareness. But have you ever stopped to think, what exactly is sound? And how do our ears actually work? Sound is caused by something emitting energy in the form of a vibration. Areas of high and low pressure move outwards creating a form of longitudinal wave (a wave which vibrates in the direction of travel). The amplitude (volume) and frequency (pitch) of the sound wave…

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There’s growing interest in using sound frequency to boost human health. And research backs it up. In the realm of healing techniques, sound work inhabits a curious space: It has been used for thousands of years—think of overtone chanting from Central Asia, for example—yet, it’s also on the frontiers of modern neuroscience. Sound work is “creating a frequency and vibration for someone that’s conducive for him or her to heal,” says Joshua Leeds, the author of The Power of Sound…

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