特定噪声有助于睡眠

宁夏 陈静雅

很多人认为只有在安静的环境下才能睡好觉。然而，一项科学研究表明，有一些噪声不但不会影响我们的睡眠，反而会让我们睡得更好。

主题语境：人与社会 篇幅：374词 建议用时：7分钟

1Think of it this way: When you're lying in bed,every single noise—from the creak（嘎吱声）of the bed to a whistle in your partner's nose—may keep your brain on high alert.You may find it hard to get a good night's sleep. Actually, you may just need more noise.While that may sound strange,it's scientifically proven that certain types of noise can help you sleep well. For example, white, pink and brown noises can help to create a more consistent surrounding background.

2Just as white light includes all of the colors of light in the spectrum,white noise contains sounds from all of the frequencies that humans can hear.

3It's a mixture of sounds from all frequencies,but white noise comes as a high-pitched buzz.That's because of the way your ears hear it.Basically,your brain increases sounds in the higher pitch frequencies, making them sound louder than they actually are. So while you may be hearing sounds from a variety of frequencies, the highest ones tend to shield the lower-pitched notes.

4Pink noise takes the human tendency to hear only some frequencies into account and balances out the noise so that all frequencies are heard equally. The higher the frequency is, the more its volume is decreased. To your ears, the sound is deeper and softer than white noise.Think of rain falling on the pavement or a gentle breeze in the trees.

5In a study at China's Peking University, researchers found that when participants were exposed to either pink noise or no noise during night-time sleep and naps, 75% reported more restful sleep with the pink noise.Brain activity monitors confirmed this,showing that participants had23%more restful brain activity at night with pink noise and45%more restful sleep during naps.

6Brown noise takes this concept to the next level,further weakening higher frequency noise to produce an even deeper and richer sound. It is similar to random particle motion in that the changes in sound signals from one moment to the next occur randomly.

7The color of noise that will help you sleep most soundly is the one you like the best.While pink and brown noises are deeper and more balanced than white noise,your personal sleep preferences will decide which one gives you the best night's sleep.

Reading Check

Language Study

Ⅰ.Difficult sentences in the text

1. Brain activity monitors confirmed this, showing that participants had 23% more restful brain activity at night with pink noise and 45%more restful sleep during naps.大脑活动监测仪证实了这一点，其显示参与者在有粉红色噪声的晚上有多23%的安稳的睡眠，在午睡时安稳的睡眠多45%。

【点石成金】V-ing形式作状语可以分为原因状语、时间状语、伴随状语和结果状语，本句中的showing...during naps 在句中作结果状语，如“The boy ran even faster,reaching the school out of breath.”中的reaching the school out of breath 在句中作结果状语。

2. While pink and brown noises are deeper and more balanced than white noise, your personal sleep preferences will decide which one gives you the best night's sleep.虽然粉红色噪声和红噪声比白噪声更低沉、更平稳，但你的个人睡眠偏好将决定哪一种噪声能让你晚上睡得最好。

【点石成金】本句中，While pink and brown noises are deeper and more balanced than white noise 为while 引导的让步状语从句；which one gives you the best night's sleep为which引导的宾语从句。

Ⅱ.Text-centered chunks

come as 感觉像是

a variety of 各种各样的

tend to 往往；倾向于

take...into account 把……考虑在内

be exposed to 置身于……