百科知识视频之煎蛋小学堂50 小测试 - 你的耳龄有多大？

As we grow older,we often lose the extrements of our hearing spectrum.So how many of the following sounds can you hear?

随着年龄的增长 我们会失去听力系统中的极端部分。下面这几段声音 你能听到多少种?

How old are your ears? OK,if you can hear 8000Hz,you are both alvie and not hearing impaired.But let's keep raising the frequency.How high could you hear?If you could hear all of those frequencies,you are probably under 20 years old.But that won't last forever.Unlike other organs such as the liver or skin,the inner ear does not have the capacity to regenerate.

你的“耳龄”有多大?好 如果你能听到8000Hz 说明你健在同时没有耳聋。不过让我们把频率增高一些。你能听到多高的呢?如果你能听到所有频率的声音，很可能你现在还没到20岁。但这并不会持续到永远。和肝脏 皮肤等器官不同，内耳并不具有重生的能力。

In your ear,there are thousands of tiny nerve cells celled"Hair Cells".These are responsible for picking up different frequencied,and sending the signal to the brain where it's processed.but as you age,the continue exposure to noise and loud sounds.can break,bend and destroy these cells.

在你的耳内分布着数千微小的神经细胞“听毛细胞”。它们各自负责捕捉不同的频率 并把信号送到大脑内做进一步处理。但在你年龄增长时 持续暴露在噪音和高响度声音 将会破坏 弯曲并毁灭这些细胞。

So,why do the high frequencies go first? It turns out that the hair's tune to high pitches.are the first to encounter sound waves.As a result,they experience more stress and tend to degenerate earlier.Which is why the older you are,the harder you hear high pitches.Got a burning question you want an answer?

那么 为什么高频率部分先中枪?事实是 处理高音的毛细胞部分 是第一个接收到声波的。因此 它们受到的压力更大 更容易在早期退化。这就是为什么你年纪越大 越难听到高频声音。有什么绕脑子的问题?