1. Some people might be more susceptible to hearing loss than others.
From the ASHA article, "Genes May Increase Risk for Noise-Induced Hearing Loss."
2. Hearing loss can manifest in unborn children due to viral infections.
3. A lot of teens and young adults might have hearing loss without knowing it. This may be due to the increase of earbuds and “music on the go.”
From NBC news and ASHA
4. Effective treatment for hearing loss is VERY high. “According to the Better Hearing Institute, 95 percent of Americans with hearing loss can be treated with hearing aids and individuals who treat their hearing loss early have shown significant benefit.”