Winner of the 2023 PEN/E.O. Wilson Literary Science Writing Award

A Smithsonian Best Science Book of 2022 • A Prospect Magazine Top Memoir of 2022 • A KCRW Life Examined Best Book of 2022



"Keen observer [and] deft writer" (David Quammen) Florence Williams explores the fascinating, cutting-edge science of heartbreak while seeking creative ways to mend her own.

When her twenty-five-year marriage suddenly falls apart, journalist Florence Williams expects the loss to hurt. But when she starts feeling physically sick, losing weight and sleep, she sets out in pursuit of rational explanation. She travels to the frontiers of the science of “social pain” to learn why heartbreak hurts so much—and why so much of the conventional wisdom about it is wrong.

Soon Williams finds herself on a surprising path that leads her from neurogenomic research laboratories to trying MDMA in a Portland therapist’s living room, from divorce workshops to the mountains and rivers that restore her. She tests her blood for genetic markers of grief, undergoes electrical shocks while looking at pictures of her ex, and discovers that our immune cells listen to loneliness. Searching for insight as well as personal strategies to game her way back to health, she seeks out new relationships and ventures into the wilderness in search of an extraordinary antidote: awe.

With warmth, daring, wit, and candor, Williams offers a gripping account of grief and healing. Heartbreak is a remarkable merging of science and self-discovery that will change the way we think about loneliness, health, and what it means to fall in and out of love.

"Highly informative and remarkably entertaining." —Elle

From forest trails in Korea, to islands in Finland, to eucalyptus groves in California, Florence Williams investigates the science behind nature’s positive effects on the brain. Delving into brand-new research, she uncovers the powers of the natural world to improve health, promote reflection and innovation, and strengthen our relationships. As our modern lives shift dramatically indoors, these ideas—and the answers they yield—are more urgent than ever.

A 2012 New York Times Notable Book

A 2013 Los Angeles Times Book Award Winner in the Science & Technology category



An engaging narrative about an incredible, life-giving organ and its imperiled modern fate.

Did you know that breast milk contains substances similar to cannabis? Or that it’s sold on the Internet for 262 times the price of oil? Feted and fetishized, the breast is an evolutionary masterpiece. But in the modern world, the breast is changing. Breasts are getting bigger, arriving earlier, and attracting newfangled chemicals. Increasingly, the odds are stacked against us in the struggle with breast cancer, even among men. What makes breasts so mercurial—and so vulnerable?

In this informative and highly entertaining account, intrepid science reporter Florence Williams sets out to uncover the latest scientific findings from the fields of anthropology, biology, and medicine. Her investigation follows the life cycle of the breast from puberty to pregnancy to menopause, taking her from a plastic surgeon’s office where she learns about the importance of cup size in Texas to the laboratory where she discovers the presence of environmental toxins in her own breast milk. The result is a fascinating exploration of where breasts came from, where they have ended up, and what we can do to save them.