噪音引起的听力损失是真实的 - 在这里是防止它的方法
Your hearing is more at risk than you think, here's how to keep it safe.
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If you’ve spent any time at a concert sitting just a little too close to the speakers, you probably know what it feels like to have your hearing damaged. Walk out of the concert and the world will sound like it’s underwater, with an unmistakable ringing that can last for hours.
大多数人都知道像这样的一再接触创伤，甚至是一次性的事件，例如您的耳膜附近的枪声，都会导致永久性的听力损失。但是，您可能不知道典型的日常声音，例如带有最大音量库存耳塞的智能手机也会造成损害。
这被称为噪声引起的听力损失，比您想象的要普遍得多。在儿童中，这特别危险，具有毁灭性的效果，可以持续到您的LFE。
Here’s everything you need to know about noise-induced hearing loss, its effects, and how you can prevent it with a few simple steps.
Exposure to sustained, loud noises over your lifetime can result in debilitating hearing loss later in life.
What is noise-induced hearing loss?
According to the CDC, noise-induced hearing loss is hearing loss caused by damage to the fibers in your inner ear that are responsible for your hearing. This kind of damage can be caused by a single loud blast or by repeated exposure to excessively loud sounds.
Though some studies suggest some kinds of hearing loss (particularly the kind caused by blasts of sound) may be reversible in some cases, the most prevalent view is that most forms of noise-induced hearing loss is not treatable by medical intervention. The best treatment in this case is prevention.
For workers in industrial settings with large, loud machines, it's important to always protect your hearing.
How does noise-induced hearing loss happen?
Noise-induced hearing loss isn’t like a broken arm; it often happens gradually without you noticing it, making it difficult to diagnose.
Though the exact threshold where damage occurs is a source of debate, the current guidelines for safe listening are to limit exposure to an average “dose” of 85dB(a) for 8 hours per day. For context, 85dB(a) is approximately equivalent to being near a garbage disposal or blender while it's running.
但是，根据我们的测试，即使是廉价的耳塞也可以平均接近105dB（a）。尽管85dB（a）的8小时剂量可能很好，但每3dB（a）您上升的时间降低了一半。因此，88dB（a）仅安全四个小时，91dB（a）占两个小时，只有一个为94。那些105dB（a）耳塞？它们可能会在几分钟内造成损害。
What are the effects?
他们比您想象的要可怕。无法听到日常事物是最明显的，但是从中产生了连锁反应。有研究表明，成人的听力损失可能有助于社交隔离,reduced cognitive function,沮丧, a从压力中恢复的能力降低, andeven early onset dementia.
在儿童中，这种影响可能更具破坏性。听力损失可能有profound effects on a child’s academic performance and social development. Hearing loss is also cumulative over your lifetime, so it may only get worse as they age into adulthood.
Volume-limiting headphones like the PuroQuiet are great for making sure your child's hearing is protected.
噪声引起的听力损失是可以治疗还是可以治愈？
Not that we know of. Though there are ways to reduce the impacts of hearing loss (such as hearing aids), there’s no known way to recover your natural hearing ability medically or surgically.
如何防止噪声引起的听力损失？
防止噪声引起的听力损失的最佳方法是避免暴露于损害您听力的声音水平。
这意味着在必要时使用听力保护，尤其是如果您可能会暴露于极度响亮的声音，甚至长时间的声音中等声音。涉及枪支或重型机械的行业的工人尤其处于危险之中，并且更有可能受到噪音引起的听力损失的影响。
也就是说，与休闲有关的活动也会导致听力损失。正如我们的实验室测试所表明的那样，一对简单的耳塞和全容量的iPhone可以轻松达到105dB（a）。聆听该音量的大声可能会在很长一段时间内产生破坏性效果，您应该尽可能避免这种效果。
Children are particularly at risk here, and for them we recommend using volume-limiting headphones. Our roundup ofthe best headphones for kidsincludes recommendations for our favorite kids headphones, all of which are volume-limited.
How do volume-limited headphones work?
对于任何一对有线耳机，最大音量由插入的内容确定。用手机以100dB为顶的耳塞可能会使用放大器达到110dB。
Volume-limited headphones work by reducing this incoming power, but there’s no hard cap. Plug a “safe” pair into an amp and it will likely be unsafe for a child to use.
无线儿童耳机使用更多的痛苦，但它们仅依靠内部功率（电池）。因此，您可以放心，只要您无线使用它们，最大音量是您的孩子最大的声音。
