The book

What makes for a happy life?

The Harvard Study of Adult Development, the longest scientific study of happiness ever conducted, shows that the answer to these questions may be closer than you realize. These insights offer simple steps to live a happier life today.

An introduction

For decades, we’ve been told a good life is built on achievement—career, wealth, status. But one of the longest scientific studies tells a different story.

Testimonials

What people are saying

What you’ll find in this book

This isn’t a theory.
It’s the result of decades of research and real lives lived.

  • What thousands of life histories reveal about what really matters

  • Why connection—not achievement—is the foundation of a good life

  • How early relationships shape the way we live today

  • What “social fitness” is, and how to practice it

  • Small, practical ways to live differently—starting now

A different way to
think about happiness.

Spotlight

Happiness isn’t something you achieve and hold onto.
It comes and goes.

What matters more is how you build your life—
through relationships, attention, and the way you meet each moment.

A good life isn’t built in big moments. It’s shaped in the small ways we relate—to others, and to our lives.

Get the book now