Briefly, music puts you in high spirits, which makes you better at studying - but it also distracts you, which makes you worse at studying. So if you want to study effectively with music on, you can try to reduce how distracting music can be, and increase the level to which music keeps you cheerful.

You may have heard of the Mozart effect -- the idea that listening to Mozart makes you “smarter”, which is based on research that found listening to complex classical music like Mozart improved test scores in mathematics. However, further research eventually debunked the Mozart effect theory: it had not really anything to do with maths; it was really just music that puts you in high spirits.

However, music can be a distraction under certain circumstances. When you study, you’re using your “working memory”--- that means you’re holding and handling several bits of information in your head immediately. The research is fairly clear that when there’s music in the background, especially music with vocals (歌唱 部分)，your working memory gets worse. Likely as a result, the reading comprehension ability is reduced when people listen to music with lyrics. Music also appears to be more distracting for people who are introverts (内向的人)than for people who are extroverts, perhaps because introverts are more easily overexcited.

Aiming to figure out the relative effect of these two competing factors — spirits and distraction, researchers had participants do a fairly demanding comprehension task, and listen to classical music which was either slow or fast, and which was either soft or loud. They found poor performances only occurred when people were listening to music that was both fast and loud.

To sum up, research suggests it’s probably fine to listen to music while you’re studying. But you’d better consider if the music puts you in high spirits, if it’s neither too fast nor too loud, if it’s less wordy, and if you’re not too introverted.

A lot of people ask this question: "Why is body language so important?" Studies have shown that in the process of communication, non-verbal expression has 65% to 93% more influence than actual text. This means that "how to say" is more important than "what to say". Of course, this does not mean that you don't need to do preparation for your interviews, nor does it mean that you can take any short cuts. On the contrary, this means that you have more things to pay attention to and prepare for.

In the real workplace, body language is much more important than you think. Without proper body language, you may find yourself trapped in a circle where you can't integrate with the external environment, not to mention the difficulties in the absence of body language in the workplace.

"People can often make inferences from actions, and the results of these inferences directly affect lives: for example. who will be employed and who will be promoted."Academician Amy Cuddy said in a TV talk show. She also said that "our body language will also affect our perception ( 感知, 看法)of ourselves. When you try to make more authoritative actions,your brain will inadvertently（不经意地）receive signals and actually create an idea that you are more authoritative, so that you have more confidence in yourself".

Therefore, before interviews or important meetings, try not to lean on any object or have a hunched back. Instead, you should try to keep your body relaxed. You can even stand with a relatively authoritative posture (姿势） -of course, you may need to do these things in the bathroom or places where no one could see you.

Body language plays a crucial role in your job interviews, careers, and everyday life. Paying attention to body language could make strong impacts on your behavior,which could help you achieve better results. So, every time you are nervous or feel that you can't do it, stretch your body, smile, and tell yourself "Fake it till you become it!"