Matt Richell Explores How Modern Life is Shaping Adolescence

Social media can impact youth negatively.

Alice Tomlinson/Getty Images

How We Grow
Matt Richtel (Mariner Books)

The true narrative of How We Grow by Pulitzer Prize-winning journalist Matt Richtel raises significant concerns for parents observing their children approach adolescence.

Elanib was once a cheerful girl, but upon entering puberty, she underwent drastic changes seemingly without reason. Struggling to focus on her studies and battling depression, treatments proved ineffective. Despite her parents’ relentless support, her story ended tragically. “It wasn’t due to a lack of relationships or care,” her father recounts to Richtel. “I did everything I could to help her.”

In How We Grow, Richtel fuses interviews, scientific studies, historical context, and insights from prominent researchers to explore the roots of today’s potential mental health crisis among youth. This book highlights a sobering reality, painting a vivid picture of the profound changes that define this critical transition into adulthood.

Adolescence coincides with significant shifts in brain chemistry. As teens grapple with their identity, they often display rebellious, moody, and impulsive behaviours. Richtel also emphasizes that in many countries, adolescence is now beginning far earlier, with serious ramifications. For example, throughout the 19th century, American children typically entered adolescence four years later than they do today. Since 1900, the average age for American girls to start menstruating has dropped from 14 to 12, largely attributed to improvements in nutrition that accelerate bodily development.

The world has undoubtedly evolved. Our environments are now thoroughly mapped, technology ensures most people are physically safe and nourished. However, the spheres in which teenagers rebel have shifted towards their identities and ethics, increasingly occurring online, presenting more complex information and perspectives to navigate.

The noticeable decline in cases of bulimia and alcohol-related accidents among teenagers in the US may be attributed to this inward focus, yet the Covid-19 lockdown left many adolescents isolated at a time when personal interactions are crucial for developing emotional intelligence, disrupting their existing support networks.

This shift means the adolescent body matures faster while their brains remain underdeveloped, as Richtel notes. Generally, this does not lead to dire consequences, but the influence of the online environment is inconsistent.

While research on the effects of social media on mental health varies, How We Grow suggests it acts as a volume knob, amplifying pre-existing emotional states. Courtney, one interviewee who had her first period at age 10, encapsulates this notion perfectly.

Provocative yet reassuring, How We Grow offers insights into adolescence for both teens and parents, shedding light on the realities of growing up and how to navigate them more effectively. For me, navigating adolescent rebellion was less about striving for independence and more about reshaping the future for the next generation.

Chris Sims is an author based in Somerset, UK.

If you need someone to talk to, contact the Samaritans in the UK at 116123 (Samaritans.org); or the US Suicide and Crisis Lifeline at 988 (988lifeline.org). You can also visit bit.ly/suicidehelplines for services in other countries.

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The groundbreaking role of giant glaciers in shaping Earth’s surface and fostering complex life

By chemically analyzing ancient rock crystals, scientists at Curtin University, Portsmouth University and St. Francis Xavier University discovered that glaciers were carved to mark the landscape after the events of the neoplasm of the Snowman Earth, releasing the main minerals that transformed the sea shells. This process has had a major impact on the composition of the planet, creating conditions that allow complex life to evolve.

Impressions of the artist “Snowman Earth.” Image credit: NASA.

“Our research provides valuable insight into how the natural systems of the Earth are deeply interconnected,” says Chris Kirkland, professor of Curtin University, the study's lead author.

“When these huge ice sheets melted, they caused a huge flood that washed out mineral and uranium-containing chemicals into the ocean.”

“This influx of elements changed marine chemistry as more complex lives began to evolve.”

“This study highlights how Earth's land, oceans, atmosphere and climate are closely connected. Even ancient glacial activity triggers the chemical chain reaction that formed the planet.”

This study also offers a new perspective on modern climate change.

It shows how past changes in the global climate have caused large-scale environmental transformations.

“This research is a clear reminder that while the Earth itself can withstand, the conditions that make it habitable can change dramatically,” Professor Kirkland said.

“These ancient climate changes demonstrate the profound and lasting impact of changes in the natural and human-driven environment.

“Understanding these past events will help us to better predict how today's climate change will reconstruct our world.”

Survey results Published in a journal Geological.

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CL Kirkland et al. Neoproterozoic glacial broom. GeologicalPublished online on February 25th, 2025. doi: 10.1130/g52887.1

Source: www.sci.news