C. Listening to music did reduce the children's pain burden to a great extent.

D. The longer the children listened to music, the less pain they felt.

7 The findings are especially important for children because .

A. they are more sensitive to music than adults

B. they can easily get addicted to pain medication

C. they usually don't like taking pain medication

D. they are more likely to suffer side effects of pain medication

　　We have a problem，and the strange thing is that we not only know about it, but also celebrate it. Just today, someone boasted (自夸) to me that she was so busy she's averaged four hours of sleep a night for the last two weeks. She wasn't complaining; she was proud of the fact. She is not alone.

　　Why are rational (理性的) people so irrational in their behavior? The answer is that we're in the midst of a bubble (泡沫). I call it "The More Bubble".

　　The nature of bubbles is that something is overvalued until-eventually-the bubble bursts, and we're left wondering why we were so irrational in the first place. The thing we're overvaluing now is the opinion of doing it all, having it all, achieving it all.

　　This bubble is being enabled by a combination of three powerful trends: smart phones, social media, and extreme consumerism (消费主义). The result is not just information overload, but opinion overload. We are more aware than at any time in history of what everyone else is doing and, therefore, what we should be doing. In the process, we have been sold a bill of goods: that success means being supermen and superwomen who can get it all done. Of course, we boasted about being busy-it's code for being successful and important.

　　And our answer to the problem of more is always more. We need more technology to help us create more technologies. We need to move our workload to free up our own time to do yet even more.

　　Luckily, there is a solution to asking for more: asking for less, but better. A growing number of people are making this change. I call these people Essentialists.

These people are designing their lives around what is essential and removing everything else. These people arrange to have actual weekends (during which they are not working). They create