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W-103 [나는 누구인가?] Who Am I?
Many people ask, “Who am I?” Finding the answer can be hard. Our identity comes from our thoughts, feelings, and experiences. As we grow, we learn new things about ourselves. A child may enjoy dra...
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W-114 [행복이란 무엇인가] What Is Happiness?
Happiness is something everyone wants, but it is hard to define. It is more than a short feeling of joy. It is a state of well-being and contentment, which means feeling calm and satisfied. Experts ha...
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W-107 [꿈은 왜 꾸는가] Why Do We Dream?
Dreams have interested people for many years. Scientists believe dreams help the brain process emotions, memories, and thoughts. During sleep, especially in REM sleep, the brain becomes very active an...
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W-105 [기억은 항상 정확한가?] Are Our Memories Always Accurate?
We trust our memories, but they are not always correct. Memory is not like a video. The brain rebuilds a memory each time we remember it, so memories can change. One common error is a false memory. Th...
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W-104 [사람들은 왜 서로 다른가?] Why Are People So Different?
Everyone is unique, even twins with the same DNA. Scientists believe people are different because of genetics and environment. Genetics come from our parents and affect eye color, height, and some per...
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W-110 [우리는 왜 부끄러움을 느낄까?] Why Do We Feel Shy?
Shyness is a common feeling. Many people feel shy when meeting new people or speaking to a group. Scientists say shyness comes from both the brain and social experiences. It is linked to the amygdala,...
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W-95 [자존감이란 무엇인가] What Is Self-Esteem?
Self-esteem is how we see and value ourselves. It affects our thoughts, feelings, and actions. Healthy self-esteem helps people feel confident and motivated, but low self-esteem can cause self-doubt a...
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W-104 [화를 다루는 방법] How to Manage Anger
Everyone feels angry sometimes. Anger is normal, but if we do not control it, it can harm relationships and daily life. The first step is to notice when anger starts. When we feel upset, taking a deep...
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W-107 [인간은 이기적인가, 친절한가?] Are Humans Selfish or Kind?
People sometimes act for themselves, but they also show kindness. This leads to the question: are humans naturally selfish or helpful? Some say humans are selfish because survival often depends on pro...
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W-100 [왜 친구가 중요할까?] Why Do We Need Friends?
Friends play an important role in life. They support us, share experiences, and help us feel connected. Scientists say friendship is important for both mental and physical health. Humans are social be...
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W-104 [외로움은 왜 생길까?] Why Do We Feel Lonely?
Loneliness is often seen as a negative feeling, but it is a natural part of life. Everyone feels lonely sometimes. Too much loneliness can be harmful. It can cause sadness, stress, and even health pro...
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W-111 [두려움은 왜 생길까?] Why Do We Feel Fear?
Fear is a natural emotion that helps keep us safe. When we sense danger, the brain reacts fast to protect us. Fear begins in the amygdala, a part of the brain that controls emotions. When something se...
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W-123 [불안을 다루는 방법] How to Manage Anxiety
Anxiety is a common emotion that appears when people worry about the future or feel unsure. A small amount is normal, but too much can make daily life hard. Deep breathing can reduce anxiety because s...
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W-140 [변화에 대한 두려움] Fear of Change
Change is normal in life, but many people feel scared when things change. This fear comes from the brain. The brain likes things that are the same because they feel safe. When something changes, the b...
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W-107 [왜 우리는 우는가?] Why Do We Cry?
Crying is a normal way to show feelings. People cry when they are sad, happy, or frustrated. Scientists say crying helps people share feelings and connect with others. It is not only for sadness.
T...
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W-132 [운과 노력] Luck and Hard Work
Some people look lucky. Others think success comes only from hard work. So, is luck real? Or is it just effort and chance together?
Luck can feel random, like winning money or meeting the right per...
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W-109 [편견은 왜 생길까?] Why Do People Have Bias?
People often judge others fast. This is called bias. Bias helps the brain think quickly, but it can be unfair. To stop bias, we must know why it happens.
The brain looks for patterns to understand th...
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W-117 [결정이 어려운 이유] Why Decisions Are Hard
People make many choices every day, but good decisions are not always easy. One problem is having too many options. When people see many choices, they can feel stressed and worry about choosing the wr...
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W-111 [사람들이 서로를 따라 하는 이유] Why People Imitate Others
People often copy others without knowing it, and imitation is an important part of human life. One reason is social learning. People learn by watching others do things like cooking, solving problems, ...
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W-108 [좋은 친구의 조건] What Makes a Good Friend
Friendship is a valuable part of life because a good friend gives support, happiness, and trust. A good friend is trustworthy. They keep secrets, help during hard times, and do not break trust. This r...
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W-108 [갈등이 생기는 이유] Why Conflicts Happen
Conflicts happen in all relationships because people have different opinions, experiences, and emotions. One common cause is differences in beliefs and values. People come from different backgrounds, ...
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W-110 [사람들이 거짓말을 하는 이유] Why People Lie
People lie for many reasons, and some lies are small while others cause problems. One reason is to avoid trouble. People may lie to escape punishment or hide mistakes, like a child saying they finishe...
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W-109 [사람들이 서로 돕는 이유] Why People Help Others
People help others in many ways, and they do it for different reasons. One reason is empathy, which means feeling another person’s pain. When people see someone who needs help, this emotional connec...
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W-107 [차별이 생기는 이유] Why Discrimination Happens
Discrimination appears in many forms, like racism, sexism, and classism. One cause is ingroup bias, which means people feel closer to those who share their culture, language, or background. They may f...
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W-109 [사람들이 칭찬을 좋아하는 이유] Why People Enjoy Compliments
People feel happy when they hear compliments, and even simple words can raise confidence. One reason is dopamine, a brain chemical that creates pleasure and motivation. When people get praise, their b...
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W-109 [인기가 생기는 이유] Why Some People Are Popular
Popularity is not only about appearance or luck. It often depends on how well a person communicates and builds relationships. Good communication is important. Popular people listen carefully, speak cl...
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W-107 [리더는 타고나는가, 만들어지는가] Are Leaders Born or Made?
Some people think great leaders are born, while others believe leadership can be learned. The truth is in the middle. Natural traits can help, but experience, training, and effort are very important. ...
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W-106 [왕따와 배제가 생기는 이유] Why Bullying and Exclusion Happen
Humans are social beings who want connection and belonging, but some people still face bullying or exclusion. Groups give people identity and safety, but they often reject those who seem different or ...
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W-104 [사람들이 가십을 하는 이유] Why People Gossip
Gossip is common in schools, workplaces, and friend groups. One reason people gossip is to feel close to others. Sharing secrets or opinions can build trust and help people find common ground. But neg...
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W-135 [질투가 생기는 이유] Why People Feel Jealous
Jealousy is a feeling everyone has when someone has something they want. This can be success, looks, or friends. Jealousy happens because people compare themselves to others. They ask, “Am I as good...
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W-109 [왜 친절이 우리를 행복하게 만드는가] Why Kindness Makes Us Happy
Helping others is important, and science shows it really makes us happy. When we are kind, our brains release chemicals that improve our mood and health. One chemical is oxytocin, a hormone that creat...
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W-120 [도덕은 모두에게 똑같을까?] Is Morality the Same for Everyone?
People often think right and wrong are clear, but different cultures have different moral values. What is good in one place may be seen as bad in another. This idea is called ethical relativism, which...
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W-102 [우리가 규칙이 필요한 이유] Why We Need Rules
Rules are part of school, work, and society. They help keep people safe, make life fair, and stop chaos. Safety is one reason we need rules. Traffic rules prevent accidents, and without them the roads...
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W-109 [왜 법이 필요한가] Why Laws Are Important
Laws are the foundation of society because they protect people, keep order, and support justice. Without laws, society would fall into anarchy, which means no government or rules. In anarchy, strong p...
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W-109 [사람들이 리더를 따르는 이유] Why People Follow Leaders
People have followed leaders throughout history, and this happens for many reasons. One reason is authority. People trust those with power or titles because they believe leaders have knowledge and exp...
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W-145 [사람들이 잘못된 선택을 하는 이유] Why People Make Bad Choices
People usually want to do the right thing, but sometimes they lie, cheat, or act selfishly. One reason is temptation, which is a strong desire to do something wrong. A student may cheat to get a good ...
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W-124 [자유 의지는 정말 있을까?] Do We Really Have Free Will?
People make choices every day, but some ask whether these choices are truly free. Free will means people control their actions and are responsible for them. If free will exists, our decisions can shap...
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W-113 [사람들이 집단에서 달라지는 이유] Why People Act Differently in Groups
People often behave differently in a group. One reason is conformity, which means wanting to fit in. If everyone laughs, we laugh too. If the group is quiet, we stay quiet. We follow others because we...
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W-120 [사람들은 색을 다르게 볼까?] Do People See Colors the Same Way?
Colors look simple, but our eyes and brains change how we see them. One reason is biology. The human eye has cone cells that help us see color. Some people have fewer cones, so they cannot see certain...
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W-109 [광고가 우리를 설득하는 방법] How Ads Make Us Want to Buy
Advertisements are everywhere, and many of them make us want to buy things. One reason is emotion. Ads use happy music, jokes, or touching stories to make us feel good, and we connect these feelings t...
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W-100 [눈을 감으면 세상은 사라질까?] Does the World Disappear When We Close Our Eyes?
Existence means something is real even when we cannot see it. A tree in the forest is still there, and the moon stays in the sky even when our eyes are closed. Things do not disappear just because we ...
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W-112 [같은 하늘, 다른 느낌] One Sky, Different Views
Objectivity means something is the same for everyone. The sky has a color, the sun gives light, and clouds have shapes even when no one is there. These facts stay the same for all people. Subjectivity...
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W-98 [공정함의 의미] What Fairness Really Means
People talk a lot about fairness, but the meaning is not simple. Equality means giving the same things to everyone. For example, in a race, all runners start at the same line. This looks fair because ...
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W-104 [행복한 삶의 조건] What Makes a Good Life
People want to be happy, but a good life looks different for each person. Many people feel happy when they have strong relationships. Friends and family give love and support, and this makes people fe...
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W-105 [악몽은 왜 생길까?] Why We Have Nightmares
Nightmares are scary dreams that make our hearts race. Stress and anxiety are common causes. When we worry too much, the brain keeps working during sleep. It can turn our fears into dreams, and these ...
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W-104 [기억이 달라지는 이유] Why People Remember Things Differently
Memory is subjective, which means it is shaped by personal feelings and experiences. Even when two people share the same event, they may remember it in different ways. One reason is attention. People ...
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