Hearing loss is one of the most common chronic health conditions in the United States. Among older adults, it is third after high blood pressure and arthritis. Nearly 1 in 4 cases of hearing loss among workers is caused by exposures on the job.

The Hearing Loss Association of America estimates that by age 65, one out of three people in the U.S. have some degree of hearing loss, according to a report by CNN.

Teenagers are routinely given hearing tests at school, but those tests aren’t very good at identifying high-frequency hearing loss, which comes from headphones and loud noises, according to a report from Penn State University.

Here are three uncommon causes of hearing loss, according to hearmichigan.com: Low-frequency sounds: Things you can't hear can still do damage. A new study from Ludwig Maximilian University in Munich, Germany revealed that listening to 90 seconds of low-frequency sounds can change the way your inner ear works for minutes after the noise ceases.

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In 2007, The National Institute for Occupational Safety and Health (NIOSH) partnered with the National Hearing Conservation Association (NHCA) to create a series of awards for excellence or innovation in hearing loss prevention.

END USER: Richard Willson, Noise at Work Consultant for TESS, The Event Safety Shop. Richard is one of the UK’s most experienced Festival noise specialists having worked on some of the UK’s most prestigious events such as Glastonbury, Latitude, Leeds & Reading Festivals, Festival Republic and BBC events.

The NHCASF is a tax-exempt organization (501c3) that provides scholarship awards to graduate, post-doctoral and residency students who focus on applied/practical studies in hearing loss prevention at regionally accredited institutions/agencies.