The feeling of envy (忌妒) strikes at many moments these days: When a friend buys a house, or when a neighbor shares good news about their successful side project while you’re caught by sky-high debts, and when a co-worker gets a new job while your career has no progress.

“It’s normal to feel envious. After all, envy is a universal emotion, and we don't have to feel ashamed by it,” psychologists (心理学家) say. In fact, psychologists suggest trying a powerful method and analyzing our envy to get clues about what we really want out of life. Doing so can help us figure out next steps in our careers and personal lives.

“Two distinct types of envy exist. Malicious (怀有恶意的) envy arrives with anger, annoyance and a sense of wanting to take an advantage away from another person,” says Jan Crusius, psychologist and professor of motivation and emotion at University of Greifswald in Germany. Benign (良性的) envy, on the other hand, is when you wish you were in someone else’s position but don’t feel like tearing them down. That envy can inspire self-reflection and the motivation to set new goals. Research from Crusius has shown that marathon runners who were to experience benign envy also set higher goals for themselves, and tended to run faster in their races.

Rather than bottle up envy when it occurs, start by asking who inspires a mix of admiration and envy in your life. If they’ve achieved a particular milestone, investigate why you’re drawn to that achievement. The answer may point you on a more fulfilling path. Changing your thoughts helps you view someone as a model to catch up rather than an opponent (对手) to defeat, and helps you focus on what you can control.

Scientists today are making greater effort to study ocean currents (洋流). Most do it using satellites and other high­tech equipment. However, ocean expert Curtis Ebbesmeyer does it in a special way — by studying movements of random floating garbage. A scientist with many years’ experience, he started this type of research in the early 1990s when he heard about hundreds of athletic shoes washing up on the shores of the northwest coast of the United States. There were so many shoes that people were setting up swap meets to try and match left and right shoes to sell or wear.

Ebbesmeyer found out in his researches that the shoes — about 60,000 in total — fell into the ocean in a shipping accident. He phoned the shoe company and asked if they wanted the shoes back. As expected, the company told him that they didn’t. Ebbesmeyer realized this could be a great experiment. If he learned when and where the shoes went into the water and tracked where they landed, he could learn a lot about the patterns of ocean currents.

The Pacific Northwest is one of the world’s best areas for beachcombing (海滩搜寻) because winds and currents join here, and as a result, there is a group of serious beachcombers in the area. Ebbesmeyer got to know a lot of them and asked for their help in collecting information about where the shoes landed. In a year he collected reliable information on 1,600 shoes. With this data, he and a colleague were able to test and improve a computer program designed to model ocean currents, and publish the findings of their study.

As the result of his work, Ebbesmeyer has become known as the scientist to call with questions about any unusual objects found floating in the ocean. He has even started an association of beachcombers and ocean experts, with 500 subscribers from West Africa to New Zealand. They have recorded all lost objects ranging from potatoes to golf gloves.

Many of us listen to music while we work, thinking that it will help us to concentrate on the task at hand. And in fact, recent research has found that music can have beneficial effects on creativity. When it comes to other areas of performance, however, the impact of background music is more complicated.

The idea that listening to music when working is beneficial to output probably has its roots in the so-called “Mozart effect”. Put simply, this is the finding that spatial rotation performance(空间旋转能力) is increased immediately after listening to the music of Mozart, compared to no sound at all.

How sound affects performance has been the topic of research for over 40 years, and is observed through a phenomenon called the irrelevant sound effect. To study irrelevant sound effect, participants in the research are asked to complete a simple task which requires them to recall a series of numbers or letters in the exact order in which they saw them. The tricky thing is being able to do this while ignoring any background noise.

Two key characteristics of the irrelevant sound effect are required for its observation. First, the task must require the person to use their rehearsal abilities(复述能力), and second, the sound must contain acoustical variation(声学变化). According to the research, where the sound does not vary much acoustically, the performance of the task is much closer to that observed in quiet conditions. It shows that the effort in ignoring varying irrelevant sound actually holds back this rehearsal ability.

A similar conflict is also seen when reading while in the presence of lyrical music. In this situation, the two sources of words—from the task and the sound—are in conflict. The cost is poorer performance of the task in the presence of music with lyrics.

What this all means is that whether having music playing in the background helps performance depends on the task and on the type of music, and only understanding this relationship will help people maximize their productivity levels.