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13 min 55 sec
Available in:English

How We Grow Up: Understanding Adolescence―A Must-Read for Parents and Anyone Who Cares for Teens and Young Adults, by the Pulitzer Prize-winning NYT reporter

Shows why teenage defiance helps societies adapt, why today's teens take fewer physical risks but struggle more inside, and how adults can support them through earlier puberty, information overload and social media.

Table of Content

If the teenager in your life seems withdrawn, glued to a screen and suddenly deaf to your advice, you may be watching biology do its job. In How We Grow Up, Pulitzer Prize-winning New York Times reporter Matt Richtel argues that adolescent defiance is how human societies adapt. Each generation sends its young out to test ideas the adults have stopped questioning.

What has changed is where they go. Today’s teens take fewer physical risks than their parents did, yet far more of them struggle with depression, self-harm and despair, because the exploring has moved inside their heads. Richtel builds that case from brain science and from the lives of real young people. Some of their stories are hard to hear, so listen with care.

The throughline is simple: teenagers are not broken, and adults who understand what adolescence is for can protect teens better. Expect to hear a slammed door differently, and to know which modern pressures deserve your attention most.

A teen throwing glitter at a protest and a boy who nearly blew up the Mayflower share more than a family tree. Their mischief points to a job adolescence has always done for the rest of us.

By the old measures of worry, this should be the safest generation of teenagers in memory. So why are emergency rooms seeing more of them than ever, and what are they looking for?

A boy his family nicknamed Diamond Head argued with teachers and caused a lab explosion. Richtel shows what his brain was doing during those years, and where that stubborn habit eventually took him.

Brain scans caught teenagers responding more strongly to unknown voices than to their own mothers. The finding stings, yet it may change how you react the next time your child stops listening.

The same apps that give one teenager friends and inspiration can drag another into fear and harassment. Richtel explains what decides which way it goes, and what screens are taking away besides time.

One teenager seemed to be recovering when his family lost him. Another went to prison before she was grown and built a new life anyway. Their endings show what adults owe the young.

Richtel’s book asks adults to change the question. Instead of asking what is wrong with this generation, ask what it is exploring and what that exploring now costs. Teenagers have always been the ones sent ahead: the boy on the Mayflower who climbed a tree to look for an ocean, the student who blew up a lab and later helped fight cancer. Today’s explorers face earlier puberty, a flood of information and screens that amplify whatever they already feel, and many of them have turned the search inward, toward identity and meaning. That inward turn carries real danger and real promise.

For the adults around them, the response is practical. When a teen pulls away toward friends, read it as development and stay close enough to be found. Treat sleep, movement and a struggling child’s time online as things worth protecting. Take the inner risks around food, control and despair as seriously as the outer ones, and keep lethal means out of reach. Then offer what Richtel says every young person needs: steady faith from the grown-ups, firm limits, and the chance to leave.

Francis Billington’s ocean was only a pond. Someone still had to climb the tree.

About this book

What is this book about?

Many adults look at today's teenagers and see moodiness, defiance and too much time on phones. Matt Richtel, a Pulitzer Prize-winning New York Times reporter, offers another reading. He argues that adolescent rebellion has a purpose. Each generation sends its young to question settled ideas and explore new ground, and societies adapt through what they bring back. What has changed is the ground itself. Drinking and teen pregnancy have fallen by nearly half, while self-harm and despair have climbed. Richtel traces that inward turn to several causes. Brains rewire during puberty to favor strangers over parents and novelty over safety. Puberty arrives earlier than it used to. And a flood of information and social media magnifies whatever a teen already feels. He tells the story through brain research and through young people such as Thomas, Henry, Courtney and Lindsey, whose paths range from hard-won growth to tragedy. Readers get a calmer way to see teenage behavior and a clearer sense of where adult attention, limits and faith matter most.

Book Information

Rating:

Genre:

Parenting & Families, Psychology

Topics:

Anxiety, Internet & Society, Neuroscience, Parenting

Publisher:

HarperCollins

Language:

English

Narrator:

Peter

First published:

July 8, 2025

Pages:

336

Length:

13 min 55 sec

Get the book:

Amazon

Who it's for

  • Parents feeling shut out

    Parents of teens and preteens who feel shut out and want to understand what is changing in their child's brain.

  • Teachers, coaches, youth workers

    Teachers, coaches and youth workers worried about anxiety, self-harm and screen time among the young people they serve.

  • Young adults looking back

    Young adults trying to make sense of their own restless teenage years.

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About the Author

Matt Richtel

Matt Richtel is a New York Times reporter who won the 2010 Pulitzer Prize for National Reporting for his series on distracted driving. He went on to write a Times series called Your Brain On Computers. The San Francisco Chronicle named his nonfiction book A Deadly Wandering one of the best books of 2014. He has also written novels and co-created the syndicated comic Rudy Park. He lives in San Francisco.

Ratings & Reviews

Ratings at a glance

4.2

Overall score based on 38 ratings.

What people think

Listeners find the examination of adolescence as a critical evolutionary phase profoundly illuminating, although perspectives differ regarding the author’s narrative stories, which some believe occasionally drift. Nevertheless, many value the blend of history and neuroscience, especially the details on why the adolescent brain is naturally programmed for creativity and risk. They also highlight the book’s relevant look at "Generation Rumination" and modern digital stresses, with one listener pointing out the intriguing study illustrating how teenagers start to value the opinions of outsiders above those of their parents. Furthermore, listeners appreciate the short, compelling chapters that ensure intricate subjects like earlier puberty and neural restructuring remain understandable for everyone.

Top reviews

Leila

Wow, the chapter on how the teenage brain is literally designed to tune out parents in favor of strangers was a total eye-opener for me. Richtel does a brilliant job of explaining that what we see as rebellion is actually a necessary biological drive to explore and innovate. I loved the historical parallels, like the story of the kid on the Mayflower vs. the modern activists of today. It really puts the current 'mental health crisis' into a broader evolutionary context. Instead of just blaming social media, he looks at the mismatch between our ancient brains and this high-speed digital environment. It’s a compassionate, well-researched, and ultimately hopeful book that helped me look at my own teenager with a lot more patience. Each chapter is bite-sized and very accessible for a non-scientist.

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Siriporn

Finally, a book that doesn't just treat teenagers like problems to be solved or screens to be confiscated! Richtel argues that adolescence is humanity’s method of evolution, and that perspective shift changed how I view my students. The way he connects the 'stubbornness' of a Nobel Prize winner like Jim Allison to the biological necessity of teenage defiance is just brilliant. Yes, the digital world is a dangerous amplifier, but the core of the 'teen problem' is actually our greatest strength as a species. The writing is engaging and the stories of kids like Thomas really bring the neuroscience to life. I finished this feeling much more optimistic about the future of our 'ruminating' generation despite the real challenges of anxiety and earlier puberty. Highly recommend for anyone working with youth.

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Komsan

Ever wonder why your fourteen-year-old is suddenly a stranger? This book explains the biological 'rewiring' that makes adolescents prioritize unfamiliar voices, and it’s honestly a relief to know it's not just my parenting. Richtel manages to weave together the history of the Mayflower with modern brain scans to show that we need this period of disruption to survive. The sections on how technology interacts with 'differential susceptibility' were particularly chilling but necessary for understanding today's mental health crisis. It’s a deep, multi-layered look at the messiness of growing up in a world that’s moving faster than our biology can keep up with. If you can get past a few of the slower narrative sections, the insights into brain remodeling and the evolution of adolescence are absolutely worth your time.

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Vipawan

After hearing Matt Richtel on a podcast, I was eager to see if his research on modern adolescence lived up to the hype. The book successfully reframes the teenage years as a vital biological stage rather than a developmental glitch. I was especially struck by the research showing how adolescent brains prioritize the voices of strangers over their own mothers—it explains so much about that sudden push for independence. While some chapters felt a little too anecdotal, the synthesis of neuroscience and history kept me turning the pages. It’s an engaging, empathetic look at why our kids are turning inward and how the digital age acts as a massive amplifier for their natural anxieties. Definitely worth a read for parents struggling to bridge the gap between their own upbringing and the 'Gen Z' experience.

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Arm

As a parent of two 'Gen Z-ers,' I found Richtel's perspective on adolescence as a survival mechanism incredibly grounding. We often get caught up in the 'kids these days' rhetoric, but this book reminds us that their brains are performing a vital function by questioning the status quo. The breakdown of how neural connections are pruned to create a more efficient, risk-taking adult brain was fascinating stuff. To be fair, the book does get a little heavy-handed with the emotional stories, and I wish there had been more practical advice for navigating the digital stress he describes. However, the overall message of empathy over judgment is something every parent and educator needs to hear right now. It's a thoughtful, timely contribution to the discussion about our kids' mental health.

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Nora

Is it just me, or is the 'teen brain' conversation starting to feel a bit repetitive? Richtel offers some decent insights into 'Generation Rumination' and how our kids are constantly looping through digital stress. Truth is, the science here about earlier puberty and brain-environment mismatch is solid, but the writing meanders quite a bit. I found myself skimming through the longer anecdotes about specific kids that didn't always seem to connect back to the core thesis. While I appreciated the idea that adolescence is an evolutionary necessity for innovation, the book felt a bit scattered compared to other works in this niche. It’s a fine primer if you’re new to the subject, but don’t expect a groundbreaking manifesto. The short chapters are great for a quick read, but the depth just isn't always there.

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Ana

Bite-sized chapters and clear language make this an easy weekend read, though I was left wanting a bit more data-driven meat. Richtel’s concept of 'Generation Rumination' is a catchy way to describe the inward turn of today’s youth, but the book spends a lot of time on individual stories like Henry’s or Courtney’s. In my experience, some of these anecdotes felt like they were included more for emotional impact than to support the scientific claims. I did appreciate the sections on how junk food is physically changing the timeline of puberty, as that’s something you don’t hear about as often. It’s a solid 3-star read: insightful in parts but occasionally loses its focus in the narrative fluff. It works as a broad overview but skips over the deeper analysis I was craving.

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Soontorn

The premise is fascinating, but I felt like the execution was a bit uneven in places. I picked this up because I was curious about the 'Generation Rumination' tag, and while Richtel provides some great context on why teens are turning inward, the book is quite anecdotal. At times, the stories about physical frontiers versus psychological ones felt a bit stretched to fit the evolutionary narrative. It’s interesting to learn about the biological pruning of the brain, but I found myself wishing for a more cohesive structure. The chapters are short and accessible, which is great for busy readers, but it sometimes feels like you're jumping from one case study to another without enough connective tissue. It’s an okay read, just not a standout in the field of adolescent psychology.

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Somporn

The title promised a deep dive into how we grow up, but I mostly found a collection of disjointed stories that didn't quite land for me. I’ve read Richtel’s 'An Elegant Defense' and enjoyed it, but this one felt too simplistic and a bit overwrought in its portrayal of Gen Z. The author relies heavily on dramatic portraits of young people struggling with identity, which frankly felt like a bit of an agenda-push by the end. Not gonna lie, I was expecting more hard science and less meandering narrative. The themes of evolutionary purpose are interesting on paper, but they got lost in the weeds of the storytelling. It just didn't add much to the existing conversation about modern kids and why they are struggling so much more than previous generations.

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Bua

Look, I appreciate the effort to reframe teenage rebellion as evolutionary, but the book feels like it's pushing an agenda through specific, dramatic anecdotes. It started out with a wide scope but eventually spiraled into these overly dramatic portraits that didn't feel representative of the average kid's experience. I was looking for more substantial research on the 'brain-environment mismatch' and less focus on sensationalized stories of trauma and transition. By the halfway point, the writing felt like it was meandering away from the science and into a social commentary that I didn't find particularly novel. If you want a rigorous look at generational differences, there are definitely stronger books out there. This one just didn't quite stick the landing for me. The science is there, but the execution is messy.

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Questions about this book

Richtel argues that teenage rebellion has a purpose. Young people push boundaries and question settled ideas, and societies adapt through what they bring back, as with Mayflower passenger Francis Billington and his descendant Thomas. Today the exploring has turned inward. Drinking and teen pregnancy have fallen by nearly half while self-harm has risen, driven by earlier puberty, information overload and social media.

Richtel describes a brain-scan study in which teens heard nonsense words spoken by their mothers and by unfamiliar women. Their reward centers responded more strongly to the strangers. He presents this as biology pushing teens toward the new relationships they will need as adults. A second factor, the dual systems model, means reward seeking matures before impulse control, so novelty pulls hard while judgment lags.

Not uniformly. Richtel reports that researchers liken social media to a volume knob that amplifies a teen’s existing state. Teens from supportive families with good self-esteem often thrive online, while anxious or rejected teens can be harmed, as Courtney was after joining online communities at ten. He also stresses what screens displace: teen sleep has fallen by 30 percent since 2007, and physical activity has dropped.

The book points to a few shifts. Read a teen’s pull toward friends as development and stay available. Watch for inner risks such as tight control over food, as in Henry’s case, not only drinking or sneaking out. Protect sleep and activity, and pay closer attention online to a teen who is already struggling. Keep lethal means out of reach, and offer compassion and boundaries together.

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How We Grow Up

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