Researchers analyze varying structure of ear canals to improve comfort, efficiency of earplugs
Noise exposure accounts for 22% of worldwide work-related health problems. Excessive noise not only causes hearing loss and tinnitus, but also increases the risk of cardiovascular diseases. To provide protection, workers normally wear earplugs. However, commonly available earplugs are often uncomfortable, since they don't fit everyone's ears equally well. How could we improve the comfort and effectiveness of these earplugs? What aspects of the ear canal must be taken into account?
Source: News Medical Life Sciences