How to prevent hearing loss according to science?

There are several scientifically proven methods to prevent hearing loss. The most robust evidence supports the use of hearing protection (such as earplugs or earmuffs) to reduce exposure to hazardous noise levels, both occupational and recreational. Proper use and insertion of earplugs significantly attenuates noise exposure and reduces the risk of noise-induced hearing loss, as demonstrated in randomized clinical trials and systematic reviews.[1-2] The American Academy of Pediatrics specifically recommends limiting exposure to excessive noise and using hearing protection for children and adolescents to prevent permanent cochlear damage.[3]

Additional preventive strategies include reducing the duration and intensity of noise exposure, maintaining a safe distance from loud sound sources, and managing cardiovascular risk factors, as these have been associated with a lower prevalence of age-related hearing loss.[4] Vaccination against infections such as measles and mumps, and avoiding ototoxic medications when possible, are also important for preventing acquired hearing loss in children.[5]

There is emerging but less conclusive evidence for the use of antioxidant vitamins and micronutrients to mitigate cochlear oxidative stress and inflammation after noise exposure, with some studies suggesting a potential protective effect, but these interventions are not yet standard clinical practice due to insufficient high-quality human data.[3, 6-9]

In summary, the most effective and evidence-based methods to prevent hearing loss are minimizing exposure to loud noise and using appropriate hearing protection. These strategies are endorsed by clinical guidelines and supported by randomized trials and systematic reviews.[1-3]

References

  1. Interventions to Prevent Occupational Noise-Induced Hearing Loss. Tikka C, Verbeek JH, Kateman E, et al. The Cochrane Database of Systematic Reviews. 2017;7:CD006396. doi:10.1002/14651858.CD006396.pub4.
  2. Effectiveness of Earplugs in Preventing Recreational Noise–Induced Hearing Loss: A Randomized Clinical Trial. Ramakers GG, Kraaijenga VJ, Cattani G, van Zanten GA, Grolman W. JAMA Otolaryngology– Head & Neck Surgery. 2016;142(6):551-8. doi:10.1001/jamaoto.2016.0225.
  3. Preventing Excessive Noise Exposure in Infants, Children, and Adolescents. Balk SJ, Bochner RE, Ramdhanie MA, Reilly BK. Pediatrics. 2023;152(5):e2023063753. doi:10.1542/peds.2023-063753.
  4. Hearing Loss in Adults. Cunningham LL, Tucci DL. The New England Journal of Medicine. 2017;377(25):2465-2473. doi:10.1056/NEJMra1616601.
  5. Hearing Loss in Children: A Review. Lieu JEC, Kenna M, Anne S, Davidson L. JAMA. 2020;324(21):2195-2205. doi:10.1001/jama.2020.17647.
  6. Increased Oxidative Stress, Inflammation, and Glutamate: Potential Preventive and Therapeutic Targets for Hearing Disorders. Prasad KN, Bondy SC. Mechanisms of Ageing and Development. 2020;185:111191. doi:10.1016/j.mad.2019.111191.
  7. Pharmacological Prevention of Noise-Induced Hearing Loss: A Systematic Review. Gupta A, Koochakzadeh S, Nguyen SA, et al. Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology. 2021;42(1):2-9. doi:10.1097/MAO.0000000000002858.
  8. The Role of Diet in Vulnerability to Noise-Induced Cochlear Injury and Hearing Loss. Spankovich C, Le Prell CG. The Journal of the Acoustical Society of America. 2019;146(5):4033. doi:10.1121/1.5132707.
  9. Role of Antioxidants in Prevention of Age-Related Hearing Loss: A Review of Literature. Tavanai E, Mohammadkhani G. European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated With the German Society for Oto-Rhino-Laryngology – Head and Neck Surgery. 2017;274(4):1821-1834. doi:10.1007/s00405-016-4378-6.