Secure.

From the Coauthor of Multimillion Copy Bestseller Attached,

The Revolutionary Guide to Creating a Secure Life

Coming April 14th, 2026

In  Secure, Dr. Levine draws on more than a decade of new neuroscience and attachment research since the publication of Attached  to introduce a paradigm shift: moving beyond identifying your style to actively reshaping your brain and creating a secure life—no matter what your attachment style is.

Recent attachment research shows that being secure affects much more than our romantic relationships. Living in secure mode has a positive influence on every part of life—at work, at home, with family and friends, and even with yourself.

What's inside:

Grounded in neuroscience

Clear tools that harness how the brain rewires through repeated secure interactions.

Practical day to day

Real-world examples, quizzes, and guided questions to change how you relate and work with others.

Heart placed as brain in human head icon

For everyone

A path to greater security for any starting point: secure, anxious, avoidant, or fearful avoidant

Who It’s For?

Individuals, Couples & Families wanting deeper connection and greater fulfillment.

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Clinicians & Coaches seeking a brain-based, attachment-focused toolkit.

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Business Teams working to build high-trust, collaborative cultures.

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Academic Settings helping foster a better, more creative learning environment.

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Outstanding Reviews

“For me, Attached only scratched the surface of the potential of this work and Secure has once again, redefined the way I view my life and my relationships” 

A.V.

“I can see people from all places and walks of life finding power in these pages”

K.B.

“This book is an open and honest wake-up call for so many people – it’s extraordinary."

P.S.

“A brilliant, hopeful upgrade to attachment science.”

B.W.

“Turns everyday interactions into neural gold.”

J.L.

“Levine is a brilliant scientist and has a way of translating complex scientific information to tools we can all use to improve our lives.”

D.C.

“A Game-Changer—Clear, Practical, and Eye-Opening”

J.S.

"The clearest problem-solution book on attachment styles I have read to date!"

E.D.B

About Amir Levine, MD

Dr. Levine is the co-author of the international bestseller Attached, which has sold over two million copies worldwide and has been translated into 42 languages. In Attached, Levine pioneered the use of attachment styles in both everyday life and clinical practice. Since then, the hashtag #attachmentstyles has been viewed over a billion times worldwide—a testament to how he helped transform a purely scientific concept into a widely used tool for understanding relationship dynamics. In Secure, Levine returns with an ingenious new framework to help readers become more secure. It’s simple and accessible yet grounded in a deep understanding of the brain—from molecular neuroscience to clinical practice.

Dr. Levine is an associate professor in clinical psychiatry at Columbia University and the director of the SecureLab.

He is a member of the American Academy of Child and Adolescent Psychiatry and the Society for Social Neuroscience. Levine is among a handful of child psychiatrists who are trained both in clinical as well as molecular approaches to study human brain development.

Ask Dr. Levine

Attached.

The New Science of Adult attachment and How it Can Help You Find—And Keep—Love.

First published in 2010, Attached introduced millions of readers to the science of adult attachment and became the go-to book for understanding romantic relationships through the lens of attachment styles. It has sold more than two million copies worldwide, has been translated into 42 languages, and is used widely by both therapists and laypeople.

Buy Your Copy Now

Common questions about becoming more secure.

Pioneered by psychologist John Bowlby in the 1950s, the field of attachment posits that everyone behaves in one of three distinct ways while in a relationship:

Anxious people are often preoccupied with their relationships and tend to worry about their partner's ability to love them back.

Avoidant people equate intimacy with a loss of independence and constantly try to minimize closeness.

Secure people feel comfortable with intimacy and are usually warm and loving.
Yes. We all have a kernel of security. With the right conditions and repeated secure experiences, the brain updates. Secure offers a practical roadmap to getting there.
No. In the past decade, research on attachment has expanded well beyond romantic relationships. Secure explores how attachment patterns show up in friendships, family, parenting, and work. From early childhood to old age. Real-life examples and practical exercises help readers apply these insights in their own lives.
Secure cites research showing that the benefits of living life in what Dr. Levine calls “secure mode” extend far and wide. It influences how you manage your health, approach job hunting, interact on social media, and even shop. Learning to become more secure helps you cope more effectively with challenges across many areas of life.
Secure offers an updated attachment quiz to identify your attachment style across different relationship domains (e.g., work, friendships, siblings, parents) and with different people, allowing you to chart your own “attachment topography.” This will help you further explore and understand how your attachment patterns impact all aspects of your life.
Yes—fearful‑avoidant. Secure devotes a full chapter to their unique challenges and path to healing.
Yes. Secure discusses avoidants from a completely new perspective, offering them more hope and tools. This novel approach depathologizes this attachment styles with solution-focused strategies, published for the first time.
Yes, Secure devotes a chapter for the anxiously attached and provides updated insights into how to make their unique biology work for them rather than against them in all areas of life.
In Secure, Dr. Levine integrates neuroscience findings to show how your brain processes social information—why it loathes exclusion and rejection, and why it thrives on hyper-connection. This understanding offers a fresh perspective on attachment research and inspired him to develop tools for building stronger, more secure connections.
Not necessarily. Attachment styles are malleable throughout our lifetime. This is good news. It means that we can change and grow and become more secure!
No. Secure stands on its own. You don’t need to have read Attached to understand Secure. This book offers a fresh, updated view of attachment styles and how they shape every area of life—friendships, family, parenting, school, work, and the relationship you have with yourself—across the entire lifespan.