Anything louder poses a risk of permanent hearing loss.

任何比这更大的声音都会有永久致聋的风险。

Loud sounds can damage these hair cells in a way that can cause temporary, even permanent hearing loss.

巨大的声音会损坏这些毛细胞，从而导致暂时性，甚至是永久性听力损失。

About 20% of children have permanent hearing loss caused mostly by exposure to loud noise, according to the Hearing Health Foundation.

听力健康基金会的数据显示，约有20%的儿童存在永久性听力丧失的问题，而这大都是因为暴露在噪音环境下引起的。

One temporary threshold shift isn't likely to cause permanent hearing loss.

一次暂时的阈值偏移不太可能导致永久性听力损失。

This is why many new studies conclude the more you listen to any type of headphone the more likely you are to have permanent hearing loss.

这就是为什么许多新的研究得出结论，你戴耳机的时间越长，患永久性听力损伤的可能性就越大。