Hearing is the sense of sound and arguably one of the more important senses, as it is one of the primary methods used to experience things in life other than through the visual sense. Without the auditory sense, you would be a deaf, meaning that you can't hear anything. Not only would it be very uncomfortable to be without the auditory sense, but you would have to alter your life completely to live without. Hearing aids would help if you have a defect but not if you were completely deaf. When one grows old, people start to lose effectiveness in the auditory sense and have to rely on such devices.

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