300,000 iPhone users join apple to unlock secrets of hearing loss
NCT ID NCT04172766
First seen Mar 22, 2026 · Last updated May 09, 2026 · Updated 6 times
Summary
This study uses iPhones and Apple Watches to measure headphone and environmental sound levels in 300,000 US adults over time. Participants answer surveys and take hearing tests through the Research app. The goal is to understand how sound exposure affects hearing health and to guide future prevention programs.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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University of Michigan School of Public Health
Ann Arbor, Michigan, 48109, United States
Conditions
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