Deafness or hearing impairment may occur from genetic causes, complications at birth, specific infectious diseases, chronic ear infections, usage of particular drugs, exposure to excessive noise, or aging. According to WHO (World Health Organization), 360 million people across the globe have disabling hearing loss, and 32 million among these are children. Around 60% of childhood hearing loss occurs because of measures that can be prevented. More than a billion adolescents to adults (12-35 years) are at danger of hearing loss as exposure to noise in recreational settings. The hearing loss that goes unaddressed poses a loss of 750 billion US Dollars per annum globally.
Techniques to prevent, recognize, and address the hearing deficiency are efficient and practical that can benefit individuals and society a great deal. Early detection can save people from severe hearing problems. The treatments include hearing aids, cochlear implants, and other assistive devices, sign language, training, and rehabilitation, along with social support.