Hidden Brain

Your brain is divided in two: a left hemisphere and a right hemisphere. In this 2019 episode of Hidden Brain, we dive into Iain McGilchrist's research on how the left and right hemispheres shape our perceptions. Iain argues that differences in the brain — and Western society's preference for what one hemisphere has to offer — have had enormous effects on our lives.

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In every episode of Hidden Brain, we thank an Unsung Hero — a colleague, a friend or a family member who has helped make our work possible from behind the scenes. Recently, we asked you to tell us about your own unsung heroes. This week, Deb Pierce remembers the nurse who showed up at one of the hardest moments in her life — when her newborn daughter passed away.

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Do you ever struggle to communicate with your mom? Or feel like you and your spouse sometimes speak different languages? We talk with linguist Deborah Tannen about how our conversational styles can cause unintended conflicts, and what we can do to communicate more effectively with the people in our lives.

If you like our work, please try to support us! See how you can help at support.hiddenbrain.org. To learn more about human behavior and ideas that can improve your life, subscribe to our newsletter at news.hiddenbrain.org

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In every episode of Hidden Brain, we thank an Unsung Hero. Many listeners have written to say they love this segment, even sharing their own Unsung Heroes. Today, we're sharing one of those stories with you.

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Hahaha! The average four-year-old child laughs 300 times a day. By contrast, it takes more than two months for the average 40-year-old adult to laugh that many times. This week, we talk with behavioral scientist Jennifer Aaker of Stanford University about why so many of us fall off a “humor cliff” as we become adults. Plus, how we can inject more laughter into our lives, even during the most difficult of times.

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More than a century ago, millions of people around the world died in a massive influenza pandemic. The so-called "Spanish flu" outbreak of 1918 revealed a truth about viruses: they don't just infect us biologically. They also detect fissures in societies and fault lines between communities. Historian Nancy Bristow says this remains true today, as we continue to grapple with the COVID-19 pandemic.This week, we revisit our 2020 conversation with Bristow, and consider what history can tell us about human behavior during public health crises.

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Podcast hosts are used to being the ones asking the questions. This week, though, we’re going to flip that script, and put Shankar in the guest seat. We’ll hear a recent interview he did with Krys Boyd of the public radio show Think from KERA in Dallas. The discussion revolves around Shankar's latest book, Useful Delusions, and how self-deceptions can bind together marriages, communities, and even entire nations.

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Stories help us make sense of the world, and can even help us to heal from trauma. They also shape our cultural narratives, for better and for worse. This week on Hidden Brain, we conclude our three-part series on storytelling with a look at the phenomenon of "honor culture," and how it dictates the way we think and behave.

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We can’t go back and change the past. We can’t erase trauma and hardship. But what if there was a way to regain control of our personal narratives? In the second part of our series on storytelling, we look at how interpreting the stories of our lives — and rewriting them — can change us forever.

Also, a note that this week's episode touches on themes of trauma and suicide. If you or someone you know may be having thoughts of suicide, please call or text the National Suicide Prevention Lifeline at 1-800-273-8255.

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Why is my friend late? How does nuclear fission work? What occurs when I sneeze? We all need to understand why certain things happen. Some researchers think the drive to explain the world is a basic human impulse, similar to thirst or hunger. This week on Hidden Brain, we begin a three part series on why we tell stories. Psychologist Tania Lombrozo discusses how explanations can lead to discovery, delight, and disaster.

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For generations, it was difficult, even dangerous, to express a sexual orientation other than heterosexuality in the United States. But in recent years, much has changed. This week, we revisit our 2019 episode about one of the most striking transformations of public attitude ever recorded. And we consider whether the strategies used by the LGBTQ community hold lessons for other groups seeking change.

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Why do some companies become household names, while others flame out? How do certain memes go viral? And why do some social movements take off and spread, while others fizzle? Today on the show, we talk with sociologist Damon Centola about social contagion, and how it can be harnessed to build a better world.

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We get messages all the time from listeners who say Hidden Brain has helped them to think differently about the world, and about themselves. As producers, nothing is more rewarding or gratifying. Today, we bring you a listener story that especially moved us. It’s a tale about two friends, and how our show played a small role in their dramatic story.

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If you've taken part in a religious service, have you ever stopped to think about how people become believers? Where do the rituals come from? And what purpose does it all serve? This week, we bring you a 2018 episode with social psychologist Azim Shariff. He argues that we should consider religion from a Darwinian perspective, as an innovation that helped human societies to grow and flourish.

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Being able to see what’s happening around us can help us make smart decisions. But knowledge — especially knowledge of how others perceive us — can also hold us back, mire us in needless worry, and keep us from achieving our potential. This week, we look at the paradox of knowledge.

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Why do some relationships last, while others falter? In this bonus episode, Shankar looks at one thing successful couples do well.

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Stereotypes are all around us, shaping how we see the world – and how the world sees us. On the surface, the stereotypes that other people hold shouldn’t affect the way we think or act. But our concerns about other people’s perceptions have a way of burrowing deep into our minds. This week, social psychologist Claude Steele explains the psychology of “stereotype threat.”

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Physicist Richard Feynman once said, “The first principle is that you must not fool yourself, and you are the easiest person to fool.” One way we fool ourselves is by imagining we know more than we do; we think we are experts. This week on Hidden Brain, psychologist Adam Grant describes the magic that unfolds when we challenge our own deeply-held beliefs.

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Around the world, people are grappling with the risks posed by the COVID-19 pandemic. How do our minds process that risk, and why do some of us process it so differently? This week, we talk with psychologist Paul Slovic about the disconnect between our own assessments of risk and the dangers we face in our everyday lives.

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All of us are surrounded by brands. Designer brands. Bargain-shopper brands. Brands for seemingly every demographic slice among us. But have you ever stopped to ask yourself how brands influence you? This week, we bring you our 2019 conversation with Americus Reed, who studies how companies create a worldview around the products they sell, and then get us to make those products a part of who we are.

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It’s human nature to hide parts of ourselves that produce shame or anxiety. We tend to skip over details that could change how others perceive us. But no matter how big or small our secret, it will often weigh on our minds, and not for the reasons you might expect. This week on Hidden Brain, we talk with psychologist Michael Slepian about the costs of secret keeping.

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It's easy to spot bias in other people, especially those with whom we disagree. But it’s not so easy to recognize our own biases. Psychologist Emily Pronin says it’s partly because of our brain architecture. This week on Hidden Brain, we explore what Pronin calls the introspection illusion.

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At the beginning of the year, many of us make resolutions for the months to come. We resolve to work out more, to procrastinate less, or to save more money. Though some people stick with these aspirations, many of us fall short. This week, we revisit our 2019 conversation with psychologist Wendy Wood, who shares what researchers have found about how to build good habits — and break bad ones.

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For so many people across the globe, 2020 has been a year of waiting and uncertainty. Waiting to see friends and family in far-flung locales. Waiting to hear about unemployment aid, or job opportunities. Waiting to hear about loved ones in the hospital. And even though the end of 2020 does not mean the end of these hardships, many of us are letting out a sigh of relief as we say goodbye to this difficult year. This week on Hidden Brain, we look at the psychology of relief and waiting, and how we can make periods of limbo less painful.

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Life is filled with hardships and tragedies — a fact that 2020 has made all too clear for people across the globe. For thousands of years, philosophers have come up with strategies to help us cope with such hardship. This week on Hidden Brain, we talk with philosopher William Irvine about ancient ideas — backed by modern psychology — that can help us manage disappointment and misfortune.

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Turn on the news or look at Twitter, and it's likely you'll be bombarded by outrage. Many people have come to believe that the only way to spark change is to incite anger. This week on Hidden Brain, we revisit a favorite 2019 episode about how outrage is hijacking our conversations, our communities, and our minds.

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We all self-censor at times. We keep quiet at dinner with our in-laws, or nod passively in a work meeting. But what happens when we take this deception a step further, and pretend we believe the opposite of what we really feel? This week on Hidden Brain, economist and political scientist Timur Kuran explains how our personal, professional and political lives are shaped by the fear of what other people think.

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Many of us struggle with self-control. And we assume willpower is the key to achieving our goals. But there's a simple and often overlooked mental habit that can improve our health and well-being. This week on Hidden Brain, we talk with psychologist David DeSteno about that habit — the practice of gratitude.

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If you're one of the 40 percent of Americans now working from home, you might be reveling in your daily commute to the dining room table. Or you might be saying, "Get me out of here." Economist Nicholas Bloom joins us from his spare bedroom to ponder whether working from home is actually working.

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Determination, hard work and sacrifice are core ingredients in the story of the American dream. But philosopher Jennifer Morton argues there is another, more painful requirement to getting ahead: a willingness to leave family and friends behind. This week, we explore the ethical costs of upward mobility.

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As election season comes to a close, we explore our contradictory relationship with winners and losers. We tend to idolize the powerful, but we also enjoy seeing the high and mighty fall. Today we explore this paradox with a 2017 episode that takes us from Hollywood and the White House to the forests of Tanzania.

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We typically divide the country into two distinct groups: Democrats and Republicans. But what if the real political divide in our country isn't between "left" and "right"? What if it's between those who care intensely about politics, and those who don’t?

This week we talk to Yanna Krupnikov, a political scientist at Stony Brook University, about an alternative way to understand Americans' political views.

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Most of us have a clear sense of right and wrong. But what happens when we view politics through a moral lens? This week, we talk with psychologist Linda Skitka about how moral certainty can produce moral blinders — and endanger democracy.

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There’s no question that 2020 has been a tough year. We're grappling with a global pandemic. A deep recession. Fresh reminders of racial injustice. But today — without minimizing the justifiable pain that 2020 has brought to so many people — we wanted to explore another way of seeing things. We talk with psychologist Steven Pinker about why it's so hard to see things that are going well in the world.

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Neuroscientist Doug Fields was on a trip to Europe when a pickpocket stole his wallet. Doug, normally mild-mannered, became enraged — and his fury turned him into a stranger to himself. Today on Hidden Brain, we explore the secret logic of irrational anger.

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It’s been five years since we launched this podcast. Today, we want to take a moment to thank the many people who’ve helped us over the years. And we want to share some changes with you.

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If you listen closely to giggles, guffaws, and polite chuckles, you can discern a huge amount of information about people and their relationships with each other. This week, we talk with neuroscientist Sophie Scott about the many shades of laughter, from cackles of delight among close friends to the "canned" mirth of TV laugh tracks.

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Judy, Lyn and Donna Ulrich were driving to a volleyball game when their Ford Pinto was hit from behind by a Chevy van. The Pinto caught fire, and the three teenagers were burned to death. This week on Hidden Brain, we talk to a former Ford insider who could have voted to recall the Pinto years before the Ulrich girls were killed — but didn't. And we ask, is it possible to fairly evaluate our past actions when we know how things turned out?

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If you've ever flown in economy class on a plane, you probably had to walk through the first class cabin to get to your seat. Maybe you noticed the extra leg room. The freshly-poured champagne. Maybe you were annoyed, or envious. Social psychologist Keith Payne says we tend to compare ourselves with those who have more than us, but rarely with those who have less. This week, we revisit our 2019 episode on the psychology of income inequality, and how perceptions of our own wealth shape our lives.

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The United States spends trillions of dollars on healthcare every year, but our outcomes are worse than those of other countries that spend less money. Why? Physician and healthcare executive Vivian Lee explains the psychological and economic incentives embedded in the American model of medicine, and makes the case for a different way forward.

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Some people are good at putting themselves in another person's shoes. Others may struggle to relate. But psychologist Jamil Zaki argues that empathy isn't a fixed trait. This week, in our final installment of You 2.0, we revisit a favorite episode about how to exercise our empathy muscles.

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American culture is all about positive affirmations. Dream big! Shoot for the stars! But do positive fantasies actually help us achieve our goals? This week, as part of our You 2.0 summer series, we revisit a conversation with researcher Gabriele Oettingen about how we can make our goals more attainable.

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Maya Shankar was well on her way to a career as a violinist when an injury closed that door. This week, as part of our annual You 2.0 series on personal growth and reinvention, we revisit our 2015 conversation with Maya, in which she shares how she found a new path forward after losing an identity she loved.

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Some challenges feel insurmountable. But psychologist Emily Balcetis says the solutions are often right in front of our eyes. This week, as part of our annual series on personal growth and reinvention, Emily explains how we can harness our sight to affect our behavior.

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Sometimes, life can feel like being stuck on a treadmill. No matter how hard you try to get happier, you end up back where you started. What's going on here? We kick off our annual You 2.0 summer series with happiness researcher Elizabeth Dunn, who explains how to fight the treadmill feeling.

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There is great comfort in the familiar. It's one reason humans often flock to other people who share the same interests, laugh at the same jokes, hold the same political views. But familiar ground may not be the best place to cultivate creativity. Researchers have found that people with deep connections to those from other countries and cultures often see benefits in terms of their creative output. This week, we revisit a favorite 2018 episode about the powerful connection between the ideas we dream up and the people who surround us, and what it really takes to think outside the box.

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In 2019, a novel by a new author, Gail Shepherd, arrived in bookstores. The True History of Lyndie B. Hawkins tells the story of a young white girl growing up in the South. The book has been well received, but it is not the book Shepherd intended to write. In her original drafts, Shepherd, a white author, created a Lyndie who was Vietnamese-American, and dealing with issues of race in the deep South. This week we look at what it means to be a storyteller in a time of caustic cultural debate and ask when, if ever, is it okay to tell a story that is not your own?

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How do you change someone's behavior? Most of us would point to education or persuasion. But what if the answer lies elsewhere? This week, we revisit a 2018 story about human nature and behavior change — a story that will take us on a journey from Budapest to the hills of Rwanda.

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Not long after his sixteenth birthday, Fred Clay was arrested for the murder of a cab driver in Boston. Eventually, Fred was found guilty — but only after police and prosecutors used questionable psychological techniques to single him out as the killer. This week on Hidden Brain, we go back four decades to uncover the harm that arises when flawed ideas from psychology are used to determine that a teenager should spend the rest of his life behind bars.

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"We hold these truths to be self-evident, that all men are created equal." These words, penned by Thomas Jefferson more than 240 years ago, continue to inspire many Americans. And yet they were written by a man who owned hundreds of slaves, and fathered six children by an enslaved woman. As we mark Independence Day this week, we return to a 2018 episode with Pulitzer Prize-winning historian Annette Gordon-Reed. We explore the contradictions in Jefferson's life — and how those contradictions might resonate in our own lives.

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