Let's say you've decided you want to eat more healthfully. However, you don't have time to carefully plan menus for meals or read food {#blank#}1{#/blank#} at the supermarket. Since you really{#blank#}2{#/blank#} yourself to a healthier lifestyle, a little help would come in handy, wouldn't it? This is where a "choice architect" can help{#blank#}3{#/blank#}_some of the burden of doing it all yourself. Choice architects are people who organize the contexts in which customers make decisions. For example, the person who decides the layout of your local supermarket-including which shelf the peanut butter goes on, and how the oranges are piled up—is a choice architect.

    Governments don't have to{#blank#}4{#/blank#}healthier lifestyles through laws  for example, smoking bans. Rather, if given an environment created by a choice architect-one that encourages us to choose what is best-we will do the right things. In other words, there will be designs that gently push customers toward making healthier choices, without removing freedom of choice. This idea combines freedom to choose with{#blank#}5{#/blank#}hints from choice architects, who aim to help people live longer, healthier, and happier lives.

    The British and Swedish governments have introduced a so-called "traffic light system" to {#blank#}6{#/blank#}foods as healthy or unhealthy. This means that customers can see at a glance how much fat, sugar, and salt each product contains{#blank#}7{#/blank#}by looking at the lights on the package. A green light {#blank#}8{#/blank#}_that the amounts of the three nutrients are healthy; yellow indicates that the customer should be{#blank#}9{#/blank#}; and red means that the food is high in at least one of the three nutrients and should be eaten in {#blank#}10{#/blank#}. The customer is given important health information, but is still free to decide what to choose.

    Want to figure out if someone is a psychopath (精神变态者)? Ask them what their favourite song is. A New York University study last year found that people who loved Eminem's Lose Yourself and Justin Bieber's What Do You Mean? were more likely to {#blank#}1{#/blank#} highly on the psychopathy scale than people who were into Dire Straits.

    Over the past few years, Spotify has been enhancing its data analytic {#blank#}2{#/blank#} in an attempt to help marketers {#blank#}3{#/blank#} consumers with adverts tailored to the mood they're in. They infer this from the sort of music you're listening to, {#blank#}4{#/blank#} with where and when you're listening to it, along with third-party data that might be available.

    Now, to be clear, there's nothing particularly {#blank#}5{#/blank#} about what Spotify is doing with your data. I certainly don't think that they are working with shadowy consulting firms to serve you ads promoting a culture war while you're listening to the songs that {#blank#}6{#/blank#} you might be in a casually racist mood. Nevertheless, I find it {#blank#}7{#/blank#}that our personal private moments with music are increasingly being turned into data points and sold to advertisers.

    You can see where this could go, can't you? As ad targeting gets ever more complicated, marketers will have the ability to target our emotions in {#blank#}8{#/blank#} exploitative ways. According to one study, titled Misery Is Not Miserly, you are more likely to spend more on a {#blank#}9{#/blank#} if you're feeling sad. You can imagine some companies might take advantage of that. And on that note, I'm feeling a little down about all this. I'll {#blank#}10{#/blank#} off to treat myself to something expensive.

    The Internet has been found a new usage. Increasingly, more and more Americans are having a(an) {#blank#}1{#/blank#}to become their own doctors, by going online to order home health tests or medical devices, or even self-treat their illnesses with drugs from Internet pharmacies(药店). Some people{#blank#}2{#/blank#} doctors because of the high cost medical care, especially if they{#blank#}3{#/blank#} health insurance. Or they may{#blank#}4{#/blank#} to see a doctor because they find it embarrassing to discuss their weight, alcohol consumption or couch potato habits. Patients may also fear what they might learn about their health, or they distrust physicians because of {#blank#}5{#/blank#}in the past. But to become their own doctors can be{#blank#}6{#/blank#}.

    Every day, more than six million American search the Internet for medical answers. Most of them have no{#blank#}7{#/blank#} about what they find. In 2002, a survey by the Pew Internet & American Life Project found that 72 percent of those surveyed believe all or most of what they read on health websites. Actually, most of such web sites are only interested in doing{#blank#}8{#/blank#} business. Of the 169 websites the researchers rated, only 16 scored as "high quality". Recent studies found faulty facts about all sorts of other disorders, causing one research team to {#blank#}9{#/blank#} that a large amount of incomplete, inaccurate and even dangerous information exists on the Internet.

    The problem is that most people don't know the safe way to surf the web. "They use a search engine like Google, get 18 trillion choices and start clicking. But that's risky, because almost anybody can put up a site that looks {#blank#}10{#/blank#} , so it's hard to know National Cancer Institute.