Noise-induced hearing loss (NIHL) is the only preventable cause of hearing loss. When exposed to loud sounds, it may feel like you are adjusting to them over time, but your ears and brain, unfortunately, will not. Once you lose your hearing from exposure to loud sounds, it will not recover (though it can usually be treated). Noise-induced hearing loss is typically gradual — by the time you notice it, it is often too late to prevent ...