What is Generations by Jean M. Twenge about?

Generations by Jean M. Twenge is a comprehensive analysis of the six living generations in the United States—Silents, Boomers, Gen X, Millennials, Gen Z, and the emerging generation. Twenge uses data from 39 million people to reveal how technology, rather than major events, drives generational differences. The book explores shifts in attitudes toward mental health, politics, sexuality, marriage, gender identity, race, and life goals across these distinct cohorts.

Who is Jean M. Twenge and why is she qualified to write Generations?

Jean M. Twenge is a professor of psychology at San Diego State University and a leading expert on generational differences. She has authored over 190 scientific publications and several bestselling books including iGen and Generation Me. Twenge's research has been featured in The New York Times, Time, and major media outlets. Her unique qualification lies in analyzing massive datasets spanning decades, making her the reigning authority on how technology and culture shape generational identity.

Who should read Generations by Jean M. Twenge?

Generations by Jean M. Twenge is essential reading for pastors, corporate leaders, teachers, managers, parents, and anyone working across generational lines. The book helps professionals understand their coworkers, employees, and clients better. It's particularly valuable for those in leadership positions who need to navigate generational conflicts, build effective teams, or market to different age groups. Anyone curious about why their parents, children, or peers think and behave differently will gain profound insights.

Is Generations by Jean M. Twenge worth reading?

Generations by Jean M. Twenge is absolutely worth reading for its groundbreaking approach to understanding American society. Reviewers call it a "landmark achievement" and "lavishly informative," praising its surprising data and incisive commentary. Unlike other generational books that rely on stereotypes, Twenge uses robust scientific data from nearly a century of surveys. The book changes how readers view their parents, peers, coworkers, and children, making it both intellectually rigorous and practically applicable.

What is the Technology Model of Generations according to Jean M. Twenge?

The Technology Model of Generations, proposed by Jean M. Twenge in Generations, argues that technological advancements—not major historical events—are the primary driver of generational differences. Twenge challenges conventional theories that blame the Great Depression or 9/11 for shaping generations. Instead, she demonstrates that technologies like television and smartphones create the cultural changes that define each generation's unique attitudes, behaviors, and worldview. This model explains why generations are becoming shorter as technology evolves faster.

Why are generations getting shorter according to Generations by Jean M. Twenge?

According to Jean M. Twenge in Generations, generations are becoming shorter because technological change has accelerated dramatically. While landline telephones took decades to reach 50% adoption, smartphones achieved this milestone in just five and a half years—the fastest technology adoption in human history. As new technologies reshape culture more rapidly, the experiences that define each generation compress into shorter timeframes, creating more distinct generational boundaries than ever before.

What does "slow living" versus "fast living" mean in Generations?

In Generations, Jean M. Twenge describes "slow living" as the modern trend where people marry later, have children later, work longer, and live longer compared to previous generations. "Fast living" characterized earlier generations who married young, had children early, drank more, and died younger. This shift toward slow living results from technology reducing survival pressures and cultural changes emphasizing individual fulfillment over traditional life milestones. Each successive generation has moved further toward this slower life trajectory.

How does Jean M. Twenge characterize the Silent Generation in Generations?

Jean M. Twenge reveals surprising insights about the Silent Generation (1925-1945) in Generations. Contrary to popular belief, Silents—not Boomers—drove the civil rights, women's rights, and sexual revolutions, as they were in their twenties and thirties during these movements. This smaller generation enjoyed less competition for jobs and housing during America's largest economic expansion. Notable Silents still shaping politics include Joe Biden, Bernie Sanders, Nancy Pelosi, Mitch McConnell, and Warren Buffett.

GENERATIONS　「世代」の正体

ジーン・M・トゥエンギ

『GENERATIONS　「世代」の正体』の概要

『Generations』において、ジーン・トウェンギはアメリカの6つの世代にわたる3,900万人を分析し、歴史的出来事ではなくテクノロジーがいかに私たちの違いを形作っているかを明らかにしています。アンジェラ・ダックワースは本作を「団結させる力」と呼び、ニューヨーク・タイムズ紙はこの「極めて有益な」データ主導の社会心理学の傑作を称賛しています。

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第1章

The Silent Revolution: How Technology Shapes Generations

In a world obsessed with generational labels, Jean M. Twenge's "Generations" arrives as a data-driven revelation. While headlines pit "OK Boomer" against "snowflake" stereotypes, Twenge's analysis of 39 million people across 24 datasets reveals something more profound: technology, not just major events, fundamentally shapes how each generation experiences the world. From Silents who pioneered civil rights to Gen Z's mental health crisis, this book has become required reading for business leaders and policymakers alike. Even Barack Obama cited it when discussing America's generational divides. What makes this work particularly compelling is how it challenges conventional wisdom - showing, for instance, that Millennials aren't actually worse off financially than previous generations, despite widespread perception to the contrary.

第2章

The Technology Model of Generations

Traditional theories about generational differences focus on major events like wars or economic depressions. Twenge proposes something more fundamental: a Technology Model of Generations that explains how technological progress creates generational differences through two powerful mechanisms. The first mechanism is individualism - the increasing emphasis on personal choice and self-expression over collective norms. Two hundred years ago, your gender, race, and class determined your life path. Today, individual choice reigns supreme. This shift didn't happen overnight; it evolved through technological progress that freed people from collective drudgery. Washing machines, refrigerators, and fast food eliminated time-consuming household tasks. Modern technology created the middle class, shifted economies from agricultural work to information work, and enabled city living where people could pursue individual interests. This individualism underpins major social changes like LGBTQ rights, racial equality movements, and even casual clothing trends - all reflecting the cultural shift from collective conformity to individual choice and comfort. Though individualism has advantages (freedom, equality) and disadvantages (social disconnection), it remains distinct from political ideologies, existing as a broader cultural system made possible by technological advancement. The second mechanism is the "slow life strategy." Unlike earlier generations with shorter lifespans and faster development, modern generations experience delayed developmental milestones. Life history theory explains this shift: when infant mortality is high (as in the past), parents adopt a "fast life strategy" with more children who grow up quickly. In the 21st century, with infant mortality plummeting from 1-in-6 in the 1800s to 1-in-200 by 2020, parents choose a "slow life strategy" with fewer children and more resources invested in each. This creates children with less independence, teens who postpone driving and dating, young adults who delay marriage and children, and older adults who age more slowly. Biomarkers confirm this slowing: 60-79 year-olds in 2007-2010 were biologically 4 years younger than the same age group in 1988-1994. Neither strategy is inherently good or bad - both are adaptations to different environments shaped by technology.

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第3章

Silents: The Overlooked Revolutionaries

Despite being called the "Silent Generation" by Time magazine in 1951, this cohort was far from silent. Born during the Great Depression and World War II (1925-1945), they spearheaded some of America's most significant social changes. Contrary to popular belief, the countercultural shift of the 1960s was largely pioneered by Silents, not Boomers. From Berkeley's Free Speech Movement to antiwar activism, from civil rights to psychedelic music, Silent leaders like Mario Savio, Gloria Steinem, Muhammad Ali, and even the Beatles transformed American society. Their most enduring legacy was advancing equality across race, gender, and sexual orientation. Richard and Mildred Loving, both Silents, were arrested in 1958 simply for being an interracial married couple. Their Supreme Court case struck down anti-miscegenation laws nationwide. Martin Luther King Jr. and Sidney Poitier pioneered racial equality, experiencing segregation firsthand before witnessing transformative change. Silent women faced stark limitations despite growing workforce participation. While employment numbers increased steadily after WWII, educational attainment actually declined from pre-war levels - women earned a higher percentage of college degrees in the 1930s (43%) than in the 1950s (32%). Medical schools informally capped female admissions at 5%, and even top graduates like future Supreme Court Justices O'Connor and Ginsburg struggled to find jobs beyond secretarial roles. Throughout the 1960s, LGBT Americans faced routine persecution until the 1969 Stonewall uprising marked the beginning of the LGBT rights movement. Led by figures like Storme DeLarverie who yelled "Why don't you guys do something?", the uprising continued for six days, fundamentally changing American attitudes. For Silents, conformity was paramount - marrying young and following the same timeline as peers was expected. The median age of first marriage reached historic lows during this era, not rising above 21 for women until 1973. Marriage rates peaked in the 1940s-50s, and fertility rates soared to 3.8 children per woman by 1957. Surprisingly, Silents have experienced remarkably low levels of mental distress - lower than both the Greatest generation before them and the early Boomers after them. Several factors likely contributed to this mental resilience: they largely missed the trauma of major wars, built careers during America's longest economic expansion, enjoyed affordable college education, married young, and benefited from improved medical care.

第4章

Boomers: From Revolution to Establishment

The Baby Boom generation began when soldiers returned from WWII, with the first Boomers born in January 1946. What demographers didn't expect was the boom's acceleration and longevity - fertility peaked in 1957 at 3.8 children per woman, continuing until 1964 and producing 76 million babies. This demographic bulge moved through American society like "a snake that swallowed a bowling ball," dominating culture at every life stage: child-focused 1950s, rebellious 1960s, soul-searching 1970s, career-building 1980s-90s, and consumer-driven 2000s. Boomers fundamentally transformed American drug culture, marking a dramatic generational divide with their Silent predecessors. In 1969, only 4% of American adults had ever tried marijuana, but this exploded to 12.5% by 1973 and 25% by 1977. The generational contrast is stark: fewer than 10% of Silents born in 1935 ever tried marijuana, compared to half of Boomers born in 1955. This rapid shift from the late 1960s to mid-1970s transformed drugs from counterculture to mainstream. By the 1970s, drug use was no longer rebellious but increasingly normalized, as writer Candi Strecker observed: "The Seventies fulfillment of the Sixties revolution was unattractive blue-collar teens puking Quaaludes at a Grand Funk Railroad concert." The 1991 congressional hearings for Supreme Court nominee Clarence Thomas became a watershed moment when Anita Hill testified that Thomas, her former boss at the EEOC, had sexually harassed her. The all-male Senate Judiciary Committee's skeptical treatment of Hill sparked national outrage among women across generations. Though Thomas was confirmed, the hearings galvanized women politically. In 1992, 26 women were newly elected to Congress, 12 of them Boomers. From Vietnam War protesters to political leaders, Boomers have dominated American politics for seven decades through their sheer numbers and unique passion for activism. Every U.S. president elected between 1992 and 2016 was a Boomer, with Clinton, Bush, and Trump all born within three months of each other in summer 1946. Politically, Boomers proved remarkably adaptable. Nearly 70% identified as Democrats in the early 1970s, sporting McGovern buttons on their jean jackets. Then, almost overnight, many transformed from hippies to yuppies in the 1980s, shifting dramatically toward Republicanism during the Reagan years. Psychologists first noticed something unusual when college students in the late 1960s began reporting significantly higher levels of paranoia, mania, and depression than earlier cohorts. This troubling pattern would follow Boomers throughout their lives, with national studies revealing they were twice as likely to experience major depression as Silents. After declining during the Silent years, suicide rates began rising for those born in the 1940s and skyrocketed through the Boomer generation. From 2000 to 2019, as the 55-64 age bracket shifted from all-Silent to all-Boomer, fatal drug overdoses increased tenfold, alcohol-related liver deaths rose 42%, and suicides jumped 60%.

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第5章

Generation X: The Digital Bridge

Like its name - a letter representing an unknown variable - Generation X (born 1965-1979) is slippery and hard to define. This small generation sandwiched between two larger ones often defines itself by how it differs from Boomers and Millennials rather than by what it is. Gen X pioneered many firsts: the first generation with television as a constant presence since birth, the first to enter young adulthood with the internet, and the first born in the 20th century not drafted into military service. Yet they were also the last to experience an analog childhood filled with cassette tapes, outdoor play, paper books, and boredom. YouTube was born when Gen X'er Jawed Karim wanted to find Janet Jackson's Super Bowl "wardrobe malfunction" online. Working with Chad Hurley and Steve Chen, he created the video-sharing platform in 2005, posting the first-ever video "Me at the zoo." Gen X pioneered the internet as we know it. Marc Andreessen created the first widely used web browser, Netscape. Gen X'ers founded Yahoo!, Google, eBay, Myspace, PayPal, Twitter, Uber, and Napster. They were the architects of our digital world. Yet paradoxically, Gen X was also the last generation to experience an analog childhood. They bridge two technological eras, having grown up analog but pioneered digital. This created sharp generational divides in communication preferences: Boomers preferred phone calls or face-to-face meetings, Gen X favored email, Millennials texted, and Gen Z embraced video platforms. For many in Generation X, parental divorce was a defining experience. As Susan Gregory Thomas put it, "There is only one question: When did your parents get divorced?" In 1960, 88% of children lived with two married parents. By 1980, during Gen X's childhood, that figure had dropped to 77%, with divorce rates nearly tripling. If you were a kid in the 1970s or 1980s, you might return to an empty house after school, let yourself in with the key worn around your neck, and spend hours watching Happy Days reruns until your parents got home. This was the latchkey kid experience, often portrayed as emblematic of Gen X's neglected childhood. Gen X represents a fascinating contradiction in life strategies. They had sex earlier than previous generations but married later, creating an unprecedented gap between these milestones. Early Boomer women typically waited only two years between first sex and marriage; Gen X women waited seven years. While Boomers typically began sexual activity in college, Gen X started in high school or even junior high. Despite early 1990s economic doom-and-gloom predictions about Gen X, the generation ultimately thrived financially. Initially branded as slackers with "McJobs" (low-pay, low-prestige service jobs with no future), Gen X's early income statistics seemed to confirm this pessimistic view. However, by 2019, Gen X (then 45-54) had higher median household incomes than Boomers and Silents at the same age. When Bill Clinton became president in 1992 at age 46, he was the first Boomer president. Yet no Gen X president has emerged, despite the first Gen X'ers turning 46 in 2011. The generational leadership gap extends beyond the presidency - in 2021, when the average Gen X'er was 50, only 20 senators were Gen X'ers, compared to 46 Boomer senators when Boomers averaged the same age in 2005.

第6章

Millennials: High Expectations Meet Harsh Reality

The U.S. Army's 2001 shift from "Be All You Can Be" to "An Army of One" perfectly captured the individualistic ethos that defined Millennial upbringing. Unlike previous generations, Millennials grew up in a culture that consistently prioritized the self above all else. This self-focus permeated popular culture during their formative years, with shows like "Dawson's Creek" and "Glee" emphasizing self-belief and self-expression. Google Books data confirms this cultural shift, showing phrases like "believe in yourself" and "just be yourself" becoming dramatically more common during Millennials' childhood. The self-esteem movement reached its peak during Millennial childhood, with schools giving every child awards and participation trophies. Data shows this approach worked - Millennials scored higher on self-esteem measures than Gen X did at the same age. By 2012, 78% of college students believed they were above average in drive to achieve, and nearly two-thirds of high school seniors thought their intelligence was above average - mathematical impossibilities that revealed inflated self-perception. Millennials came of age precisely as the internet transformed society, making them uniquely positioned between the analog past and digital future. They witnessed the transition from physical media to digital formats, becoming the first generation to navigate the challenges of early internet culture. From Millennial Shawn Fanning's creation of Napster in 1999 to Mark Zuckerberg's launch of Facebook from his Harvard dorm room, Millennials pioneered digital innovation and social media usage. Millennials are the first American generation where more than one-third earned four-year college degrees by their late 20s, compared to just one-quarter of Gen X'ers. The trend is even more striking among women, with the proportion approaching half each year. For minority groups, the gains have been substantial - Hispanic college graduates more than doubled since 2005, and Black graduates doubled since 1990. Despite the popular narrative that Millennials are financially worse off than previous generations, data tells a different story. By 2019, Millennial households were actually earning about $9,000 more than Gen X'ers and $10,000 more than Boomers at the same age (adjusted for inflation). Individual wages for 25-34 year-olds reached record highs in 2020, contradicting claims about "stagnant wages." Despite predictions that Millennials would return to religion like previous generations, they've dramatically broken from religious institutions and beliefs. By 2020, almost as many Millennials identified as religiously unaffiliated as Christian, contrasting sharply with Boomers who were three times more likely to identify as Christian than unaffiliated. Millennials experienced a striking reversal in mental health from adolescence to adulthood. As teens in the 1990s and 2000s, they reported remarkably high levels of happiness - 32% more Millennials said they were "very happy" compared to Gen X teens in the early 1990s. Yet beneath this optimistic surface lurked warning signs: more Millennials reported trouble sleeping, remembering things, and thinking - all symptoms of depression. College-bound Millennials increasingly felt overwhelmed and rated their emotional health below average. Then came adulthood, and everything changed. As Millennials entered their late twenties and thirties in the mid-2010s, depression rates soared dramatically - even as rates declined or remained steady among older generations. Days of poor mental health among young adults, which had been slowly rising for years, suddenly spiked in the mid-2010s, particularly among 25-to-29-year-olds.

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第7章

Generation Z: Digital Natives in Crisis

Gen Z represents the first generation to spend their entire adolescence in the smartphone era. When Apple CEO Steve Jobs introduced the iPhone in 2007, declaring "Apple is going to reinvent the phone," he set in motion a technological revolution that would profoundly shape this generation's development. The oldest Gen Z'ers were just 12 when smartphones debuted, and by 2012, half of Americans owned these devices - marking the fastest adoption of any technology in human history. Gen Z's attitudes toward gender identity have undergone a remarkable transformation in just a few years. By 2021, Gen Z had become the only generation where a majority believed there are more than two genders. This gender fluidity represents the logical conclusion of rising individualism, extending "different is good" and "be who you are" attitudes to gender identity. The data is striking: While only 0.1% of Boomers identify as transgender, 2.3% of Gen Z young adults do - twenty times more. Similarly, over 3% of Gen Z young adults identify as nonbinary, compared to less than 1% of Boomers. Combined, about 1 out of 18 Gen Z young adults identified as something other than male or female in 2021-2022 - approximately 2 million Americans, more than the population of Phoenix. What experts once estimated as a 3-4% LGB population has exploded among Gen Z, with 16.1% of young adults identifying as something other than straight in 2021 - more than twice as many as just seven years earlier. This dramatic increase is primarily driven by bisexuality, particularly among women. By 2021, almost one in five young adult women identified as bisexual, and in 2021-2022 data, a staggering 23% of Gen Z women claimed this identity - twice as many as Millennial women and 32 times more than among Silents and Boomers. Despite living in an era of dating apps, free birth control, and few taboos around premarital sex, Gen Z is experiencing what some call a "sex depression." A remarkable 3 in 10 Gen Z men ages 18-25 haven't had sex in the past year - twice the rate of Millennials at the same age. For women, it's 1 in 4, up from 1 in 7 among Millennials. Gen Z has embraced safety culture in ways previous generations rejected. Unlike Boomers who took pride in risk-taking, Gen Z teens are less likely to "get a kick out of doing dangerous things" or "like to take risks." This extends beyond physical safety to emotional safety - the concept that words and ideas can cause harm. The phrase "stay safe" quadrupled in American books between 1995-2019, as did "safe space." Gen Z is experiencing a profound mental health crisis that began around 2012 and has only worsened since. The data is alarming: loneliness among teens spiked after 2012; life satisfaction plummeted with the percentage of dissatisfied 12th graders doubling in just eight years; and clinical depression more than doubled between 2011 and 2021, affecting nearly 30% of teen girls and 12% of teen boys by 2021. Most tragically, behaviors confirm these self-reports - emergency room visits for self-harm quadrupled among 10-14 year old girls, suicide attempts via self-poisoning doubled among young teens, and the teen suicide rate nearly doubled between 2007 and 2019. If suicide rates had remained at 2007 levels, 17,677 more young people would still be alive - equivalent to 123 crashed airplanes full of young people.

第8章

The Polar Generation: Born Into Uncertainty

The first Polars were just 5-7 years old, learning to read and settling into elementary school routines when COVID-19 abruptly transformed their lives in March 2020. Unlike their Gen Z predecessors, most Polars will have no meaningful memories of a pre-pandemic world. Even before COVID, Polars were entering a uniquely challenging era defined by two forces that inspired their generational name: intense political polarization and climate change symbolized by melting polar ice caps. Born after smartphones crossed 50% ownership in America (2013), after Black Lives Matter was founded (2013), and too young to clearly remember pre-pandemic life, Polars take for granted technology that seemed revolutionary just years earlier. Census projections show Polars will be America's first generation with a non-White majority, with the non-Hispanic White percentage at just 50.7% in 2020 and declining. They're also the generation with the highest proportion of multiracial Americans, reflecting the nearly quadrupled growth in multiracial identification between 2010-2020. Despite alarming news stories that might suggest otherwise, children today are safer than ever before. Fatal injury rates among children under 9 have plummeted since the 1980s when Gen X and Millennials were young. Car seat laws, medication safety caps, and swimming pool regulations have dramatically reduced childhood deaths. Young children are magnetically drawn to phones and tablets, with their bright colors and moving images acting like catnip to toddlers. By 2015, three-quarters of young children had their own tablets - a figure that likely increased during the pandemic. One in five children have their own smartphone by age 8, rising to a majority by age 11. Screen time has exploded, with 8- to 12-year-olds averaging five and a half hours daily with screen media in 2021 - an hour more than in 2015 and nearly as long as they spend in school. This digital immersion has coincided with alarming declines in physical activity. Between 2012 and 2019, the number of preschool and elementary children who were physically active fewer than half of days doubled, with nearly one in five preschoolers and more than one in four elementary children getting insufficient exercise.

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第9章

Navigating Our Generational Future

The traditional office model is transforming as generational leadership changes occur. Gen X and Millennial bosses are significantly more supportive of remote work than Boomers, with 55% of Millennials questioning office returns compared to just 36% of Boomers. The old "butt in chair" model is giving way to results-focused work with greater flexibility. This flexibility looks different across generations. As Millennial Gabe Kennedy discovered when interviewing a Gen Z applicant who asked to stop working after meeting daily goals, younger workers have fundamentally different expectations. "For Millennials it was 'There's still an office but I can play Ping-Pong and drink nitro coffee.' For Gen Z it's 'Holy cow I can make a living by posting on social media when I want and how I want.'" Birth rates in the U.S. have plummeted, with 5.8 million fewer babies born between 2008 and 2019 than if fertility rates had remained stable. By 2020, the total fertility rate was 1.64, well below the 2.1 replacement level, tilting the country toward having more older people than younger ones. The declining birth rate presents multiple challenges. Without increased immigration, the U.S. faces Japan's fate - economic contraction and fewer workers supporting retirees. Social Security is projected to run out by 2033, paying only 76% of expected benefits thereafter. Beyond economics, fewer children means fewer family ties in old age, leading to isolation similar to Japan's elderly who face "lonely deaths." Political views are shaped by both age and generation, with research showing that presidential approval ratings during people's formative years (ages 14-24) strongly influence lifelong political leanings. This explains why Gen Z and younger Millennials who came of age during Trump's unpopular presidency lean Democrat, creating a fundamental generational conflict with more conservative Boomers and Gen X. Young Republicans have dramatically shifted their views on social issues, with the majority now supporting transgender people in the military, holding favorable views of LGBTQ+ individuals, backing marijuana legalization, and supporting paid maternity leave - positions that would have been unimaginable among Republicans just a decade ago. The 2020s represent a dynamic period for America's six living generations, each navigating unique transitions: Silents enjoying retirement after pandemic lockdowns; Boomers retiring after decades of cultural dominance; Gen X reluctantly moving into leadership positions; Millennials seeking greater responsibility in their prime; Gen Z finding their voice and influence; and Polars overcoming pandemic-disrupted beginnings. Data collected across decades reveals profound generational changes in attitudes, personality traits, behaviors, education, and life pace. These differences stem not from major historical events but from technology's radical transformation of daily life through two key mechanisms: rising individualism and a slower life strategy. Technology presents the ultimate trade-off: providing instant communication, convenience, and longer lives while simultaneously isolating us, fueling political division, widening generation gaps, and triggering mental health crises. Understanding these shared technological challenges may help reduce intergenerational conflict as we recognize we're all navigating these changes together.

★★★★★

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『GENERATIONS　「世代」の正体』の主要テーマ

generational data analysis
technological determinism
individualism vs collectivism
slow life strategy
demographic shifts

『GENERATIONS　「世代」の正体』の名言

Today, individual choice reigns supreme.
Conformity was paramount.
Boomers have dominated American politics.

『GENERATIONS　「世代」の正体』の登場人物

Jean M. TwengeAuthor and psychologist who analyzed 39 million people
Gloria SteinemSilent Generation leader and feminist activist
Richard and Mildred LovingInterracial couple who challenged marriage laws

著者について

ジーン・マリー・トウェンジ（Jean Marie Twenge）は、『Generations』の著者であり、世代間の違いとそれがアメリカ社会に与える影響を専門とする、第一線の心理学者です。

1971年生まれのトウェンジは、サンディエゴ州立大学の心理学教授を務めており、数十年にわたる4,000万人以上のデータセットに基づいた研究を行っています。『Generations』の中で彼女は、Z世代、ミレニアル世代、X世代、ベビーブーマー世代、サイレント世代を定義づける独特の特徴、価値観、課題を検証し、各世代がいかに文化的・技術的変化を形成し、またそれらによって形作られているかについて、データに基づいた洞察を提供しています。

トウェンジはまた、『iGen』『Generation Me』『The Narcissism Epidemic』などのベストセラーの著者でもあり、テクノロジー、個人主義、文化的期待が若者のメンタルヘルスや行動にどのような影響を与えるかを探求しています。彼女の著作は「ニューヨーク・タイムズ」、「タイム」、「アトランティック」に掲載され、「トゥデイ」、「グッド・モーニング・アメリカ」、NPRなどのメディアにも出演しています。

190本以上の学術論文を発表しているトウェンジは、世代間の隔たりと、それが家族、職場、そして社会全体に及ぼす影響を理解するための信頼できる専門家として知られています。

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学習プラン

Beyond Blame: Correcting the Fundamental Attribution Error

In an increasingly polarized world, understanding why we judge others unfairly is a critical leadership and social skill. This plan is ideal for managers, educators, and anyone looking to improve their emotional intelligence by mastering the psychological roots of human behavior.

1 h 15 m•3 セクション

学習プラン

The Psychology of First Impressions

In the fast-paced world of modern dating, first impressions are often decided in seconds. This plan is designed for individuals looking to master the subconscious signals of attraction and trust to build more meaningful, lasting relationships.

1 h 15 m•3 セクション

学習プラン

Mastering High-Stakes Social Connection

This plan is essential for professionals and individuals who feel limited by social friction or shallow interactions. It provides a roadmap for anyone looking to transform their social life, from conquering initial nerves to mastering the art of long-term connection.

2 h•4 セクション

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

今すぐ学習の旅を始めよう

第6章

GENERATIONS 「世代」の正体

概要『GENERATIONS 「世代」の正体』の概要

1冊の本。さまざまな聴き方。

The Silent Revolution: How Technology Shapes Generations

The Technology Model of Generations

聴きながら、すべての言葉を目で追えます

Silents: The Overlooked Revolutionaries

Boomers: From Revolution to Establishment

『GENERATIONS 「世代」の正体』をもっと深く楽しむ

Generation X: The Digital Bridge

Millennials: High Expectations Meet Harsh Reality

聴きながら、すべての言葉を目で追えます

Generation Z: Digital Natives in Crisis

The Polar Generation: Born Into Uncertainty

『GENERATIONS 「世代」の正体』をもっと深く楽しむ

Navigating Our Generational Future

『GENERATIONS 「世代」の正体』を最後まで読み終えました

『GENERATIONS 「世代」の正体』の主要テーマ

『GENERATIONS 「世代」の正体』の名言

『GENERATIONS 「世代」の正体』の登場人物

著者について

GENERATIONS 「世代」の正体の要約をダウンロード

他のユーザーのお気に入り

この本に関するよくある質問

What is Generations by Jean M. Twenge about?

Who is Jean M. Twenge and why is she qualified to write Generations?

Who should read Generations by Jean M. Twenge?

Is Generations by Jean M. Twenge worth reading?

この学習プランの一部

Raising confident children gen z

もっと見る

1,000,000+ curious minds.

1,000,000+ curious minds.

1冊の本。さまざまな聴き方。

The Silent Revolution: How Technology Shapes Generations

The Technology Model of Generations

聴きながら、すべての言葉を目で追えます

Silents: The Overlooked Revolutionaries

Boomers: From Revolution to Establishment

『GENERATIONS 「世代」の正体』をもっと深く楽しむ

Generation X: The Digital Bridge

Millennials: High Expectations Meet Harsh Reality

聴きながら、すべての言葉を目で追えます

Generation Z: Digital Natives in Crisis

The Polar Generation: Born Into Uncertainty

『GENERATIONS 「世代」の正体』をもっと深く楽しむ

Navigating Our Generational Future

『GENERATIONS 「世代」の正体』を最後まで読み終えました

他のユーザーのお気に入り

この学習プランの一部

Raising confident children gen z

もっと見る

GENERATIONS　「世代」の正体

『GENERATIONS　「世代」の正体』の概要

『GENERATIONS　「世代」の正体』をもっと深く楽しむ

『GENERATIONS　「世代」の正体』をもっと深く楽しむ

『GENERATIONS　「世代」の正体』を最後まで読み終えました

『GENERATIONS　「世代」の正体』の主要テーマ

『GENERATIONS　「世代」の正体』の名言

『GENERATIONS　「世代」の正体』の登場人物

GENERATIONS　「世代」の正体の要約をダウンロード

『GENERATIONS　「世代」の正体』をもっと深く楽しむ

『GENERATIONS　「世代」の正体』をもっと深く楽しむ

『GENERATIONS　「世代」の正体』を最後まで読み終えました